Finding the Fourth Proportional to 13,225.68, 18,250.25 and 7,559.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,225.68 : 18,250.25 = 7,559.30 : x
2. Step 2: Convert to fraction form
   13,225.68/18,250.25 = 7,559.30/x
3. Step 3: Cross multiply
   13,225.68x = 18,250.25 × 7,559.30
4. Step 4: Simplify right side
   13,225.68x = 137,959,114.83
5. Step 5: Solve for x
   x = 137,959,114.83/13,225.68
6. Step 6: Final answer
   x = 10,431.15