Finding the Fourth Proportional to 31,302.88, 43,194.72 and 17,872.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,302.88 : 43,194.72 = 17,872.72 : x
2. Step 2: Convert to fraction form
   31,302.88/43,194.72 = 17,872.72/x
3. Step 3: Cross multiply
   31,302.88x = 43,194.72 × 17,872.72
4. Step 4: Simplify right side
   31,302.88x = 772,007,136.04
5. Step 5: Solve for x
   x = 772,007,136.04/31,302.88
6. Step 6: Final answer
   x = 24,662.50