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Finding the Fourth Proportional to 78,454.93, 108,269.91 and 42,647.35

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Solution

The fourth proportional to 78,454.93, 108,269.91 and 42,647.35 is: 58,854.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,454.93 : 108,269.91 = 42,647.35 : x
  2. Step 2: Convert to fraction form
    78,454.93/108,269.91 = 42,647.35/x
  3. Step 3: Cross multiply
    78,454.93x = 108,269.91 × 42,647.35
  4. Step 4: Simplify right side
    78,454.93x = 4,617,424,746.24
  5. Step 5: Solve for x
    x = 4,617,424,746.24/78,454.93
  6. Step 6: Final answer
    x = 58,854.49

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