Finding the Fourth Proportional to 23,443.77, 32,352.33 and 12,688.66

Step by Step Solution

1. Step 1: Write the proportion equation
   23,443.77 : 32,352.33 = 12,688.66 : x
2. Step 2: Convert to fraction form
   23,443.77/32,352.33 = 12,688.66/x
3. Step 3: Cross multiply
   23,443.77x = 32,352.33 × 12,688.66
4. Step 4: Simplify right side
   23,443.77x = 410,507,715.58
5. Step 5: Solve for x
   x = 410,507,715.58/23,443.77
6. Step 6: Final answer
   x = 17,510.31