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Finding the Fourth Proportional to 84,213.12, 126,332.16 and 28,034.88

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Solution

The fourth proportional to 84,213.12, 126,332.16 and 28,034.88 is: 42,056.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,213.12 : 126,332.16 = 28,034.88 : x
  2. Step 2: Convert to fraction form
    84,213.12/126,332.16 = 28,034.88/x
  3. Step 3: Cross multiply
    84,213.12x = 126,332.16 × 28,034.88
  4. Step 4: Simplify right side
    84,213.12x = 3,541,706,945.74
  5. Step 5: Solve for x
    x = 3,541,706,945.74/84,213.12
  6. Step 6: Final answer
    x = 42,056.47

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