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Finding the Fourth Proportional to 98,786.48, 148,204.02 and 28,664.78

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Solution

The fourth proportional to 98,786.48, 148,204.02 and 28,664.78 is: 43,004.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,786.48 : 148,204.02 = 28,664.78 : x
  2. Step 2: Convert to fraction form
    98,786.48/148,204.02 = 28,664.78/x
  3. Step 3: Cross multiply
    98,786.48x = 148,204.02 × 28,664.78
  4. Step 4: Simplify right side
    98,786.48x = 4,248,235,628.42
  5. Step 5: Solve for x
    x = 4,248,235,628.42/98,786.48
  6. Step 6: Final answer
    x = 43,004.22

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