Finding the Fourth Proportional to 10,138.25, 15,182.76 and 7,499.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,138.25 : 15,182.76 = 7,499.27 : x
2. Step 2: Convert to fraction form
   10,138.25/15,182.76 = 7,499.27/x
3. Step 3: Cross multiply
   10,138.25x = 15,182.76 × 7,499.27
4. Step 4: Simplify right side
   10,138.25x = 113,859,540.67
5. Step 5: Solve for x
   x = 113,859,540.67/10,138.25
6. Step 6: Final answer
   x = 11,230.70