Finding the Fourth Proportional to 23,298.12, 32,150.43 and 12,687.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,298.12 : 32,150.43 = 12,687.72 : x
2. Step 2: Convert to fraction form
   23,298.12/32,150.43 = 12,687.72/x
3. Step 3: Cross multiply
   23,298.12x = 32,150.43 × 12,687.72
4. Step 4: Simplify right side
   23,298.12x = 407,915,653.72
5. Step 5: Solve for x
   x = 407,915,653.72/23,298.12
6. Step 6: Final answer
   x = 17,508.52