Finding the Fourth Proportional to 13,032.48, 17,984.38 and 7,724.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,032.48 : 17,984.38 = 7,724.15 : x
2. Step 2: Convert to fraction form
   13,032.48/17,984.38 = 7,724.15/x
3. Step 3: Cross multiply
   13,032.48x = 17,984.38 × 7,724.15
4. Step 4: Simplify right side
   13,032.48x = 138,914,048.78
5. Step 5: Solve for x
   x = 138,914,048.78/13,032.48
6. Step 6: Final answer
   x = 10,659.06