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Finding the Fourth Proportional to 296,605.10, 444,864.45 and 86,221.10

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Solution

The fourth proportional to 296,605.10, 444,864.45 and 86,221.10 is: 129,319.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,605.10 : 444,864.45 = 86,221.10 : x
  2. Step 2: Convert to fraction form
    296,605.10/444,864.45 = 86,221.10/x
  3. Step 3: Cross multiply
    296,605.10x = 444,864.45 × 86,221.10
  4. Step 4: Simplify right side
    296,605.10x = 38,356,702,229.90
  5. Step 5: Solve for x
    x = 38,356,702,229.90/296,605.10
  6. Step 6: Final answer
    x = 129,319.09

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