Finding the Fourth Proportional to 23,188.67, 32,000.21 and 12,578.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,188.67 : 32,000.21 = 12,578.32 : x
2. Step 2: Convert to fraction form
   23,188.67/32,000.21 = 12,578.32/x
3. Step 3: Cross multiply
   23,188.67x = 32,000.21 × 12,578.32
4. Step 4: Simplify right side
   23,188.67x = 402,508,738.56
5. Step 5: Solve for x
   x = 402,508,738.56/23,188.67
6. Step 6: Final answer
   x = 17,357.99