Finding the Fourth Proportional to 31,150.94, 42,989.70 and 17,543.66

Step by Step Solution

1. Step 1: Write the proportion equation
   31,150.94 : 42,989.70 = 17,543.66 : x
2. Step 2: Convert to fraction form
   31,150.94/42,989.70 = 17,543.66/x
3. Step 3: Cross multiply
   31,150.94x = 42,989.70 × 17,543.66
4. Step 4: Simplify right side
   31,150.94x = 754,196,465.35
5. Step 5: Solve for x
   x = 754,196,465.35/31,150.94
6. Step 6: Final answer
   x = 24,211.04