Finding the Fourth Proportional to 10,118.40, 15,162.23 and 7,162.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,118.40 : 15,162.23 = 7,162.88 : x
2. Step 2: Convert to fraction form
   10,118.40/15,162.23 = 7,162.88/x
3. Step 3: Cross multiply
   10,118.40x = 15,162.23 × 7,162.88
4. Step 4: Simplify right side
   10,118.40x = 108,605,122.40
5. Step 5: Solve for x
   x = 108,605,122.40/10,118.40
6. Step 6: Final answer
   x = 10,733.43