Finding the Fourth Proportional to 58,385.50, 80,572.31 and 31,889.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,385.50 : 80,572.31 = 31,889.50 : x
2. Step 2: Convert to fraction form
   58,385.50/80,572.31 = 31,889.50/x
3. Step 3: Cross multiply
   58,385.50x = 80,572.31 × 31,889.50
4. Step 4: Simplify right side
   58,385.50x = 2,569,410,679.75
5. Step 5: Solve for x
   x = 2,569,410,679.75/58,385.50
6. Step 6: Final answer
   x = 44,007.68