Finding the Fourth Proportional to 14,941.31, 20,620.98 and 9,651.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,941.31 : 20,620.98 = 9,651.50 : x
2. Step 2: Convert to fraction form
   14,941.31/20,620.98 = 9,651.50/x
3. Step 3: Cross multiply
   14,941.31x = 20,620.98 × 9,651.50
4. Step 4: Simplify right side
   14,941.31x = 199,023,478.69
5. Step 5: Solve for x
   x = 199,023,478.69/14,941.31
6. Step 6: Final answer
   x = 13,320.35