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Finding the Fourth Proportional to 105,068.78, 145,007.01 and 58,506.33

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Solution

The fourth proportional to 105,068.78, 145,007.01 and 58,506.33 is: 80,745.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,068.78 : 145,007.01 = 58,506.33 : x
  2. Step 2: Convert to fraction form
    105,068.78/145,007.01 = 58,506.33/x
  3. Step 3: Cross multiply
    105,068.78x = 145,007.01 × 58,506.33
  4. Step 4: Simplify right side
    105,068.78x = 8,483,828,523.15
  5. Step 5: Solve for x
    x = 8,483,828,523.15/105,068.78
  6. Step 6: Final answer
    x = 80,745.48

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