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Finding the Fourth Proportional to 93,678.36, 128,976.48 and 75,832.44

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Solution

The fourth proportional to 93,678.36, 128,976.48 and 75,832.44 is: 104,406.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,678.36 : 128,976.48 = 75,832.44 : x
  2. Step 2: Convert to fraction form
    93,678.36/128,976.48 = 75,832.44/x
  3. Step 3: Cross multiply
    93,678.36x = 128,976.48 × 75,832.44
  4. Step 4: Simplify right side
    93,678.36x = 9,780,601,181.01
  5. Step 5: Solve for x
    x = 9,780,601,181.01/93,678.36
  6. Step 6: Final answer
    x = 104,406.20

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