Finding the Fourth Proportional to 103,601.20, 142,982.32 and 58,281.10

Step by Step Solution

1. Step 1: Write the proportion equation
   103,601.20 : 142,982.32 = 58,281.10 : x
2. Step 2: Convert to fraction form
   103,601.20/142,982.32 = 58,281.10/x
3. Step 3: Cross multiply
   103,601.20x = 142,982.32 × 58,281.10
4. Step 4: Simplify right side
   103,601.20x = 8,333,166,890.15
5. Step 5: Solve for x
   x = 8,333,166,890.15/103,601.20
6. Step 6: Final answer
   x = 80,435.04