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Finding the Fourth Proportional to 84,680.80, 127,021.42 and 28,560.33

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Solution

The fourth proportional to 84,680.80, 127,021.42 and 28,560.33 is: 42,840.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,680.80 : 127,021.42 = 28,560.33 : x
  2. Step 2: Convert to fraction form
    84,680.80/127,021.42 = 28,560.33/x
  3. Step 3: Cross multiply
    84,680.80x = 127,021.42 × 28,560.33
  4. Step 4: Simplify right side
    84,680.80x = 3,627,772,894.36
  5. Step 5: Solve for x
    x = 3,627,772,894.36/84,680.80
  6. Step 6: Final answer
    x = 42,840.56

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