Finding the Fourth Proportional to 31,061.78, 42,865.08 and 17,447.93

Step by Step Solution

1. Step 1: Write the proportion equation
   31,061.78 : 42,865.08 = 17,447.93 : x
2. Step 2: Convert to fraction form
   31,061.78/42,865.08 = 17,447.93/x
3. Step 3: Cross multiply
   31,061.78x = 42,865.08 × 17,447.93
4. Step 4: Simplify right side
   31,061.78x = 747,906,700.96
5. Step 5: Solve for x
   x = 747,906,700.96/31,061.78
6. Step 6: Final answer
   x = 24,078.04