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Finding the Fourth Proportional to 172,343.36, 258,375.60 and 77,504.10

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Solution

The fourth proportional to 172,343.36, 258,375.60 and 77,504.10 is: 116,193.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,343.36 : 258,375.60 = 77,504.10 : x
  2. Step 2: Convert to fraction form
    172,343.36/258,375.60 = 77,504.10/x
  3. Step 3: Cross multiply
    172,343.36x = 258,375.60 × 77,504.10
  4. Step 4: Simplify right side
    172,343.36x = 20,025,168,339.96
  5. Step 5: Solve for x
    x = 20,025,168,339.96/172,343.36
  6. Step 6: Final answer
    x = 116,193.45

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