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Finding the Fourth Proportional to 8,736.78, 13,105.14 and 3,542.64

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Solution

The fourth proportional to 8,736.78, 13,105.14 and 3,542.64 is: 5,313.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.78 : 13,105.14 = 3,542.64 : x
  2. Step 2: Convert to fraction form
    8,736.78/13,105.14 = 3,542.64/x
  3. Step 3: Cross multiply
    8,736.78x = 13,105.14 × 3,542.64
  4. Step 4: Simplify right side
    8,736.78x = 46,426,793.17
  5. Step 5: Solve for x
    x = 46,426,793.17/8,736.78
  6. Step 6: Final answer
    x = 5,313.95

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