Finding the Fourth Proportional to 11,042.27, 15,230.42 and 7,686.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,042.27 : 15,230.42 = 7,686.25 : x
2. Step 2: Convert to fraction form
   11,042.27/15,230.42 = 7,686.25/x
3. Step 3: Cross multiply
   11,042.27x = 15,230.42 × 7,686.25
4. Step 4: Simplify right side
   11,042.27x = 117,064,815.73
5. Step 5: Solve for x
   x = 117,064,815.73/11,042.27
6. Step 6: Final answer
   x = 10,601.52