Finding the Fourth Proportional to 103,429.87, 142,747.61 and 58,111.36

Step by Step Solution

1. Step 1: Write the proportion equation
   103,429.87 : 142,747.61 = 58,111.36 : x
2. Step 2: Convert to fraction form
   103,429.87/142,747.61 = 58,111.36/x
3. Step 3: Cross multiply
   103,429.87x = 142,747.61 × 58,111.36
4. Step 4: Simplify right side
   103,429.87x = 8,295,257,753.85
5. Step 5: Solve for x
   x = 8,295,257,753.85/103,429.87
6. Step 6: Final answer
   x = 80,201.76