Finding the Fourth Proportional to 12,264.89, 16,920.29 and 9,601.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,264.89 : 16,920.29 = 9,601.61 : x
2. Step 2: Convert to fraction form
   12,264.89/16,920.29 = 9,601.61/x
3. Step 3: Cross multiply
   12,264.89x = 16,920.29 × 9,601.61
4. Step 4: Simplify right side
   12,264.89x = 162,461,965.07
5. Step 5: Solve for x
   x = 162,461,965.07/12,264.89
6. Step 6: Final answer
   x = 13,246.11