Finding the Fourth Proportional to 23,591.57, 32,557.01 and 12,981.87

Step by Step Solution

1. Step 1: Write the proportion equation
   23,591.57 : 32,557.01 = 12,981.87 : x
2. Step 2: Convert to fraction form
   23,591.57/32,557.01 = 12,981.87/x
3. Step 3: Cross multiply
   23,591.57x = 32,557.01 × 12,981.87
4. Step 4: Simplify right side
   23,591.57x = 422,650,806.50
5. Step 5: Solve for x
   x = 422,650,806.50/23,591.57
6. Step 6: Final answer
   x = 17,915.34