Finding the Fourth Proportional to 23,581.71, 32,543.63 and 12,972.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,581.71 : 32,543.63 = 12,972.15 : x
2. Step 2: Convert to fraction form
   23,581.71/32,543.63 = 12,972.15/x
3. Step 3: Cross multiply
   23,581.71x = 32,543.63 × 12,972.15
4. Step 4: Simplify right side
   23,581.71x = 422,160,785.04
5. Step 5: Solve for x
   x = 422,160,785.04/23,581.71
6. Step 6: Final answer
   x = 17,902.04