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Finding the Fourth Proportional to 78,805.95, 108,752.57 and 42,996.70

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Solution

The fourth proportional to 78,805.95, 108,752.57 and 42,996.70 is: 59,335.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,805.95 : 108,752.57 = 42,996.70 : x
  2. Step 2: Convert to fraction form
    78,805.95/108,752.57 = 42,996.70/x
  3. Step 3: Cross multiply
    78,805.95x = 108,752.57 × 42,996.70
  4. Step 4: Simplify right side
    78,805.95x = 4,676,001,411.54
  5. Step 5: Solve for x
    x = 4,676,001,411.54/78,805.95
  6. Step 6: Final answer
    x = 59,335.64

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