Finding the Fourth Proportional to 23,300.16, 32,154.27 and 12,689.76

Step by Step Solution

1. Step 1: Write the proportion equation
   23,300.16 : 32,154.27 = 12,689.76 : x
2. Step 2: Convert to fraction form
   23,300.16/32,154.27 = 12,689.76/x
3. Step 3: Cross multiply
   23,300.16x = 32,154.27 × 12,689.76
4. Step 4: Simplify right side
   23,300.16x = 408,029,969.28
5. Step 5: Solve for x
   x = 408,029,969.28/23,300.16
6. Step 6: Final answer
   x = 17,511.90