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Finding the Fourth Proportional to 294,842.10, 442,263.15 and 81,609.60

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Solution

The fourth proportional to 294,842.10, 442,263.15 and 81,609.60 is: 122,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,842.10 : 442,263.15 = 81,609.60 : x
  2. Step 2: Convert to fraction form
    294,842.10/442,263.15 = 81,609.60/x
  3. Step 3: Cross multiply
    294,842.10x = 442,263.15 × 81,609.60
  4. Step 4: Simplify right side
    294,842.10x = 36,092,918,766.24
  5. Step 5: Solve for x
    x = 36,092,918,766.24/294,842.10
  6. Step 6: Final answer
    x = 122,414.40

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