Finding the Fourth Proportional to 13,445.27, 18,552.72 and 7,475.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,445.27 : 18,552.72 = 7,475.75 : x
2. Step 2: Convert to fraction form
   13,445.27/18,552.72 = 7,475.75/x
3. Step 3: Cross multiply
   13,445.27x = 18,552.72 × 7,475.75
4. Step 4: Simplify right side
   13,445.27x = 138,695,496.54
5. Step 5: Solve for x
   x = 138,695,496.54/13,445.27
6. Step 6: Final answer
   x = 10,315.56