Finding the Fourth Proportional to 13,499.75, 18,629.52 and 7,450.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,499.75 : 18,629.52 = 7,450.05 : x
2. Step 2: Convert to fraction form
   13,499.75/18,629.52 = 7,450.05/x
3. Step 3: Cross multiply
   13,499.75x = 18,629.52 × 7,450.05
4. Step 4: Simplify right side
   13,499.75x = 138,790,855.48
5. Step 5: Solve for x
   x = 138,790,855.48/13,499.75
6. Step 6: Final answer
   x = 10,280.99