Finding the Fourth Proportional to 16,561.89, 22,854.96 and 9,393.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,561.89 : 22,854.96 = 9,393.12 : x
2. Step 2: Convert to fraction form
   16,561.89/22,854.96 = 9,393.12/x
3. Step 3: Cross multiply
   16,561.89x = 22,854.96 × 9,393.12
4. Step 4: Simplify right side
   16,561.89x = 214,679,381.88
5. Step 5: Solve for x
   x = 214,679,381.88/16,561.89
6. Step 6: Final answer
   x = 12,962.25