Finding the Fourth Proportional to 103,443.25, 142,751.82 and 58,731.25

Step by Step Solution

1. Step 1: Write the proportion equation
   103,443.25 : 142,751.82 = 58,731.25 : x
2. Step 2: Convert to fraction form
   103,443.25/142,751.82 = 58,731.25/x
3. Step 3: Cross multiply
   103,443.25x = 142,751.82 × 58,731.25
4. Step 4: Simplify right side
   103,443.25x = 8,383,992,828.38
5. Step 5: Solve for x
   x = 8,383,992,828.38/103,443.25
6. Step 6: Final answer
   x = 81,049.20