Finding the Fourth Proportional to 22,868.57, 31,548.61 and 13,432.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,868.57 : 31,548.61 = 13,432.88 : x
2. Step 2: Convert to fraction form
   22,868.57/31,548.61 = 13,432.88/x
3. Step 3: Cross multiply
   22,868.57x = 31,548.61 × 13,432.88
4. Step 4: Simplify right side
   22,868.57x = 423,788,692.30
5. Step 5: Solve for x
   x = 423,788,692.30/22,868.57
6. Step 6: Final answer
   x = 18,531.49