Finding the Fourth Proportional to 72,707.93, 109,120.20 and 37,657.61

Step by Step Solution

1. Step 1: Write the proportion equation
   72,707.93 : 109,120.20 = 37,657.61 : x
2. Step 2: Convert to fraction form
   72,707.93/109,120.20 = 37,657.61/x
3. Step 3: Cross multiply
   72,707.93x = 109,120.20 × 37,657.61
4. Step 4: Simplify right side
   72,707.93x = 4,109,205,389.12
5. Step 5: Solve for x
   x = 4,109,205,389.12/72,707.93
6. Step 6: Final answer
   x = 56,516.61