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Finding the Fourth Proportional to 10,301.78, 15,436.37 and 7,829.06

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Solution

The fourth proportional to 10,301.78, 15,436.37 and 7,829.06 is: 11,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,301.78 : 15,436.37 = 7,829.06 : x
  2. Step 2: Convert to fraction form
    10,301.78/15,436.37 = 7,829.06/x
  3. Step 3: Cross multiply
    10,301.78x = 15,436.37 × 7,829.06
  4. Step 4: Simplify right side
    10,301.78x = 120,852,209.30
  5. Step 5: Solve for x
    x = 120,852,209.30/10,301.78
  6. Step 6: Final answer
    x = 11,731.19

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