Finding the Fourth Proportional to 31,271.88, 43,155.18 and 17,124.60

Step by Step Solution

1. Step 1: Write the proportion equation
   31,271.88 : 43,155.18 = 17,124.60 : x
2. Step 2: Convert to fraction form
   31,271.88/43,155.18 = 17,124.60/x
3. Step 3: Cross multiply
   31,271.88x = 43,155.18 × 17,124.60
4. Step 4: Simplify right side
   31,271.88x = 739,015,195.43
5. Step 5: Solve for x
   x = 739,015,195.43/31,271.88
6. Step 6: Final answer
   x = 23,631.94