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Finding the Fourth Proportional to 98,528.93, 135,921.21 and 58,223.20

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Solution

The fourth proportional to 98,528.93, 135,921.21 and 58,223.20 is: 80,319.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,528.93 : 135,921.21 = 58,223.20 : x
  2. Step 2: Convert to fraction form
    98,528.93/135,921.21 = 58,223.20/x
  3. Step 3: Cross multiply
    98,528.93x = 135,921.21 × 58,223.20
  4. Step 4: Simplify right side
    98,528.93x = 7,913,767,114.47
  5. Step 5: Solve for x
    x = 7,913,767,114.47/98,528.93
  6. Step 6: Final answer
    x = 80,319.22

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