Finding the Fourth Proportional to 23,309.88, 32,166.72 and 12,699.24

Step by Step Solution

1. Step 1: Write the proportion equation
   23,309.88 : 32,166.72 = 12,699.24 : x
2. Step 2: Convert to fraction form
   23,309.88/32,166.72 = 12,699.24/x
3. Step 3: Cross multiply
   23,309.88x = 32,166.72 × 12,699.24
4. Step 4: Simplify right side
   23,309.88x = 408,492,897.29
5. Step 5: Solve for x
   x = 408,492,897.29/23,309.88
6. Step 6: Final answer
   x = 17,524.45