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Finding the Fourth Proportional to 52,442.80, 78,664.20 and 47,258.80

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Solution

The fourth proportional to 52,442.80, 78,664.20 and 47,258.80 is: 70,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,442.80 : 78,664.20 = 47,258.80 : x
  2. Step 2: Convert to fraction form
    52,442.80/78,664.20 = 47,258.80/x
  3. Step 3: Cross multiply
    52,442.80x = 78,664.20 × 47,258.80
  4. Step 4: Simplify right side
    52,442.80x = 3,717,575,694.96
  5. Step 5: Solve for x
    x = 3,717,575,694.96/52,442.80
  6. Step 6: Final answer
    x = 70,888.20

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