Finding the Fourth Proportional to 13,496.88, 18,626.72 and 7,833.20

Step by Step Solution

1. Step 1: Write the proportion equation
   13,496.88 : 18,626.72 = 7,833.20 : x
2. Step 2: Convert to fraction form
   13,496.88/18,626.72 = 7,833.20/x
3. Step 3: Cross multiply
   13,496.88x = 18,626.72 × 7,833.20
4. Step 4: Simplify right side
   13,496.88x = 145,906,823.10
5. Step 5: Solve for x
   x = 145,906,823.10/13,496.88
6. Step 6: Final answer
   x = 10,810.41