Finding the Fourth Proportional to 72,520.75, 108,784.05 and 34,550.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,520.75 : 108,784.05 = 34,550.50 : x
2. Step 2: Convert to fraction form
   72,520.75/108,784.05 = 34,550.50/x
3. Step 3: Cross multiply
   72,520.75x = 108,784.05 × 34,550.50
4. Step 4: Simplify right side
   72,520.75x = 3,758,543,319.53
5. Step 5: Solve for x
   x = 3,758,543,319.53/72,520.75
6. Step 6: Final answer
   x = 51,827.14