Finding the Fourth Proportional to 31,806.40, 43,892.88 and 17,658.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,806.40 : 43,892.88 = 17,658.88 : x
2. Step 2: Convert to fraction form
   31,806.40/43,892.88 = 17,658.88/x
3. Step 3: Cross multiply
   31,806.40x = 43,892.88 × 17,658.88
4. Step 4: Simplify right side
   31,806.40x = 775,099,100.77
5. Step 5: Solve for x
   x = 775,099,100.77/31,806.40
6. Step 6: Final answer
   x = 24,369.28