Finding the Fourth Proportional to 23,298.89, 32,152.61 and 12,688.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,298.89 : 32,152.61 = 12,688.56 : x
2. Step 2: Convert to fraction form
   23,298.89/32,152.61 = 12,688.56/x
3. Step 3: Cross multiply
   23,298.89x = 32,152.61 × 12,688.56
4. Step 4: Simplify right side
   23,298.89x = 407,970,352.86
5. Step 5: Solve for x
   x = 407,970,352.86/23,298.89
6. Step 6: Final answer
   x = 17,510.30