Finding the Fourth Proportional to 56,561.25, 78,061.41 and 32,688.12

Step by Step Solution

1. Step 1: Write the proportion equation
   56,561.25 : 78,061.41 = 32,688.12 : x
2. Step 2: Convert to fraction form
   56,561.25/78,061.41 = 32,688.12/x
3. Step 3: Cross multiply
   56,561.25x = 78,061.41 × 32,688.12
4. Step 4: Simplify right side
   56,561.25x = 2,551,680,737.45
5. Step 5: Solve for x
   x = 2,551,680,737.45/56,561.25
6. Step 6: Final answer
   x = 45,113.58