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Finding the Fourth Proportional to 336,030.80, 504,046.20 and 86,712.80

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Solution

The fourth proportional to 336,030.80, 504,046.20 and 86,712.80 is: 130,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,030.80 : 504,046.20 = 86,712.80 : x
  2. Step 2: Convert to fraction form
    336,030.80/504,046.20 = 86,712.80/x
  3. Step 3: Cross multiply
    336,030.80x = 504,046.20 × 86,712.80
  4. Step 4: Simplify right side
    336,030.80x = 43,707,257,331.36
  5. Step 5: Solve for x
    x = 43,707,257,331.36/336,030.80
  6. Step 6: Final answer
    x = 130,069.20

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