Finding the Fourth Proportional to 23,471.76, 32,390.85 and 12,861.37

Step by Step Solution

1. Step 1: Write the proportion equation
   23,471.76 : 32,390.85 = 12,861.37 : x
2. Step 2: Convert to fraction form
   23,471.76/32,390.85 = 12,861.37/x
3. Step 3: Cross multiply
   23,471.76x = 32,390.85 × 12,861.37
4. Step 4: Simplify right side
   23,471.76x = 416,590,706.46
5. Step 5: Solve for x
   x = 416,590,706.46/23,471.76
6. Step 6: Final answer
   x = 17,748.59