Finding the Fourth Proportional to 23,549.76, 32,499.36 and 12,939.48

Step by Step Solution

1. Step 1: Write the proportion equation
   23,549.76 : 32,499.36 = 12,939.48 : x
2. Step 2: Convert to fraction form
   23,549.76/32,499.36 = 12,939.48/x
3. Step 3: Cross multiply
   23,549.76x = 32,499.36 × 12,939.48
4. Step 4: Simplify right side
   23,549.76x = 420,524,818.73
5. Step 5: Solve for x
   x = 420,524,818.73/23,549.76
6. Step 6: Final answer
   x = 17,856.86