Finding the Fourth Proportional to 13,499.92, 18,629.76 and 7,531.44

Step by Step Solution

1. Step 1: Write the proportion equation
   13,499.92 : 18,629.76 = 7,531.44 : x
2. Step 2: Convert to fraction form
   13,499.92/18,629.76 = 7,531.44/x
3. Step 3: Cross multiply
   13,499.92x = 18,629.76 × 7,531.44
4. Step 4: Simplify right side
   13,499.92x = 140,308,919.65
5. Step 5: Solve for x
   x = 140,308,919.65/13,499.92
6. Step 6: Final answer
   x = 10,393.31