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Finding the Fourth Proportional to 296,996.18, 445,458.08 and 86,634.32

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Solution

The fourth proportional to 296,996.18, 445,458.08 and 86,634.32 is: 129,940.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,996.18 : 445,458.08 = 86,634.32 : x
  2. Step 2: Convert to fraction form
    296,996.18/445,458.08 = 86,634.32/x
  3. Step 3: Cross multiply
    296,996.18x = 445,458.08 × 86,634.32
  4. Step 4: Simplify right side
    296,996.18x = 38,591,957,849.31
  5. Step 5: Solve for x
    x = 38,591,957,849.31/296,996.18
  6. Step 6: Final answer
    x = 129,940.92

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