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Finding the Fourth Proportional to 78,104.08, 107,784.14 and 42,294.09

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Solution

The fourth proportional to 78,104.08, 107,784.14 and 42,294.09 is: 58,366.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,104.08 : 107,784.14 = 42,294.09 : x
  2. Step 2: Convert to fraction form
    78,104.08/107,784.14 = 42,294.09/x
  3. Step 3: Cross multiply
    78,104.08x = 107,784.14 × 42,294.09
  4. Step 4: Simplify right side
    78,104.08x = 4,558,632,492.93
  5. Step 5: Solve for x
    x = 4,558,632,492.93/78,104.08
  6. Step 6: Final answer
    x = 58,366.12

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