Finding the Fourth Proportional to 23,348.34, 32,220.90 and 12,738.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,348.34 : 32,220.90 = 12,738.15 : x
2. Step 2: Convert to fraction form
   23,348.34/32,220.90 = 12,738.15/x
3. Step 3: Cross multiply
   23,348.34x = 32,220.90 × 12,738.15
4. Step 4: Simplify right side
   23,348.34x = 410,434,657.34
5. Step 5: Solve for x
   x = 410,434,657.34/23,348.34
6. Step 6: Final answer
   x = 17,578.75