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Finding the Fourth Proportional to 102,978, 154,476 and 29,106

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Solution

The fourth proportional to 102,978, 154,476 and 29,106 is: 43,661.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,978 : 154,476 = 29,106 : x
  2. Step 2: Convert to fraction form
    102,978/154,476 = 29,106/x
  3. Step 3: Cross multiply
    102,978x = 154,476 × 29,106
  4. Step 4: Simplify right side
    102,978x = 4,496,178,456
  5. Step 5: Solve for x
    x = 4,496,178,456/102,978
  6. Step 6: Final answer
    x = 43,661.54

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