Finding the Fourth Proportional to 23,290.76, 32,141.10 and 12,680.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,290.76 : 32,141.10 = 12,680.12 : x
2. Step 2: Convert to fraction form
   23,290.76/32,141.10 = 12,680.12/x
3. Step 3: Cross multiply
   23,290.76x = 32,141.10 × 12,680.12
4. Step 4: Simplify right side
   23,290.76x = 407,553,004.93
5. Step 5: Solve for x
   x = 407,553,004.93/23,290.76
6. Step 6: Final answer
   x = 17,498.48