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Finding the Fourth Proportional to 297,126.76, 445,646.30 and 86,708.20

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Solution

The fourth proportional to 297,126.76, 445,646.30 and 86,708.20 is: 130,049.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,126.76 : 445,646.30 = 86,708.20 : x
  2. Step 2: Convert to fraction form
    297,126.76/445,646.30 = 86,708.20/x
  3. Step 3: Cross multiply
    297,126.76x = 445,646.30 × 86,708.20
  4. Step 4: Simplify right side
    297,126.76x = 38,641,188,509.66
  5. Step 5: Solve for x
    x = 38,641,188,509.66/297,126.76
  6. Step 6: Final answer
    x = 130,049.51

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