Finding the Fourth Proportional to 23,499.10, 32,428.79 and 12,743.92

Step by Step Solution

1. Step 1: Write the proportion equation
   23,499.10 : 32,428.79 = 12,743.92 : x
2. Step 2: Convert to fraction form
   23,499.10/32,428.79 = 12,743.92/x
3. Step 3: Cross multiply
   23,499.10x = 32,428.79 × 12,743.92
4. Step 4: Simplify right side
   23,499.10x = 413,269,905.46
5. Step 5: Solve for x
   x = 413,269,905.46/23,499.10
6. Step 6: Final answer
   x = 17,586.63