Finding the Fourth Proportional to 14,658.98, 21,988.15 and 3,565.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,658.98 : 21,988.15 = 3,565.72 : x
2. Step 2: Convert to fraction form
   14,658.98/21,988.15 = 3,565.72/x
3. Step 3: Cross multiply
   14,658.98x = 21,988.15 × 3,565.72
4. Step 4: Simplify right side
   14,658.98x = 78,403,586.22
5. Step 5: Solve for x
   x = 78,403,586.22/14,658.98
6. Step 6: Final answer
   x = 5,348.50