Finding the Fourth Proportional to 23,290.18, 32,141.03 and 12,680.40

Step by Step Solution

1. Step 1: Write the proportion equation
   23,290.18 : 32,141.03 = 12,680.40 : x
2. Step 2: Convert to fraction form
   23,290.18/32,141.03 = 12,680.40/x
3. Step 3: Cross multiply
   23,290.18x = 32,141.03 × 12,680.40
4. Step 4: Simplify right side
   23,290.18x = 407,561,064.47
5. Step 5: Solve for x
   x = 407,561,064.47/23,290.18
6. Step 6: Final answer
   x = 17,499.26