Finding the Fourth Proportional to 103,049.50, 142,208.31 and 58,337.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,049.50 : 142,208.31 = 58,337.50 : x
2. Step 2: Convert to fraction form
   103,049.50/142,208.31 = 58,337.50/x
3. Step 3: Cross multiply
   103,049.50x = 142,208.31 × 58,337.50
4. Step 4: Simplify right side
   103,049.50x = 8,296,077,284.63
5. Step 5: Solve for x
   x = 8,296,077,284.63/103,049.50
6. Step 6: Final answer
   x = 80,505.75