Finding the Fourth Proportional to 114,730.42, 172,139.76 and 55,561.54

Step by Step Solution

1. Step 1: Write the proportion equation
   114,730.42 : 172,139.76 = 55,561.54 : x
2. Step 2: Convert to fraction form
   114,730.42/172,139.76 = 55,561.54/x
3. Step 3: Cross multiply
   114,730.42x = 172,139.76 × 55,561.54
4. Step 4: Simplify right side
   114,730.42x = 9,564,350,160.83
5. Step 5: Solve for x
   x = 9,564,350,160.83/114,730.42
6. Step 6: Final answer
   x = 83,363.68