Finding the Fourth Proportional to 108,543.30, 149,785.38 and 63,222.72

Step by Step Solution

1. Step 1: Write the proportion equation
   108,543.30 : 149,785.38 = 63,222.72 : x
2. Step 2: Convert to fraction form
   108,543.30/149,785.38 = 63,222.72/x
3. Step 3: Cross multiply
   108,543.30x = 149,785.38 × 63,222.72
4. Step 4: Simplify right side
   108,543.30x = 9,469,839,139.83
5. Step 5: Solve for x
   x = 9,469,839,139.83/108,543.30
6. Step 6: Final answer
   x = 87,244.81