Finding the Fourth Proportional to 11,147.69, 15,383.85 and 6,111.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,147.69 : 15,383.85 = 6,111.98 : x
2. Step 2: Convert to fraction form
   11,147.69/15,383.85 = 6,111.98/x
3. Step 3: Cross multiply
   11,147.69x = 15,383.85 × 6,111.98
4. Step 4: Simplify right side
   11,147.69x = 94,025,862.29
5. Step 5: Solve for x
   x = 94,025,862.29/11,147.69
6. Step 6: Final answer
   x = 8,434.56