Finding the Fourth Proportional to 23,348.61, 32,221.06 and 12,738.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,348.61 : 32,221.06 = 12,738.31 : x
2. Step 2: Convert to fraction form
   23,348.61/32,221.06 = 12,738.31/x
3. Step 3: Cross multiply
   23,348.61x = 32,221.06 × 12,738.31
4. Step 4: Simplify right side
   23,348.61x = 410,441,850.81
5. Step 5: Solve for x
   x = 410,441,850.81/23,348.61
6. Step 6: Final answer
   x = 17,578.86