Finding the Fourth Proportional to 23,472.14, 32,391.59 and 12,861.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,472.14 : 32,391.59 = 12,861.72 : x
2. Step 2: Convert to fraction form
   23,472.14/32,391.59 = 12,861.72/x
3. Step 3: Cross multiply
   23,472.14x = 32,391.59 × 12,861.72
4. Step 4: Simplify right side
   23,472.14x = 416,611,496.63
5. Step 5: Solve for x
   x = 416,611,496.63/23,472.14
6. Step 6: Final answer
   x = 17,749.19