Finding the Fourth Proportional to 31,045.12, 42,841.07 and 17,615.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,045.12 : 42,841.07 = 17,615.57 : x
2. Step 2: Convert to fraction form
   31,045.12/42,841.07 = 17,615.57/x
3. Step 3: Cross multiply
   31,045.12x = 42,841.07 × 17,615.57
4. Step 4: Simplify right side
   31,045.12x = 754,669,921.76
5. Step 5: Solve for x
   x = 754,669,921.76/31,045.12
6. Step 6: Final answer
   x = 24,308.81