Finding the Fourth Proportional to 23,290.90, 32,141.36 and 12,680.52

Step by Step Solution

1. Step 1: Write the proportion equation
   23,290.90 : 32,141.36 = 12,680.52 : x
2. Step 2: Convert to fraction form
   23,290.90/32,141.36 = 12,680.52/x
3. Step 3: Cross multiply
   23,290.90x = 32,141.36 × 12,680.52
4. Step 4: Simplify right side
   23,290.90x = 407,569,158.31
5. Step 5: Solve for x
   x = 407,569,158.31/23,290.90
6. Step 6: Final answer
   x = 17,499.07