Finding the Fourth Proportional to 13,088.25, 18,064.22 and 7,499.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,088.25 : 18,064.22 = 7,499.25 : x
2. Step 2: Convert to fraction form
   13,088.25/18,064.22 = 7,499.25/x
3. Step 3: Cross multiply
   13,088.25x = 18,064.22 × 7,499.25
4. Step 4: Simplify right side
   13,088.25x = 135,468,064.34
5. Step 5: Solve for x
   x = 135,468,064.34/13,088.25
6. Step 6: Final answer
   x = 10,350.36