Finding the Fourth Proportional to 11,147.40, 15,383.37 and 6,111.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,147.40 : 15,383.37 = 6,111.83 : x
2. Step 2: Convert to fraction form
   11,147.40/15,383.37 = 6,111.83/x
3. Step 3: Cross multiply
   11,147.40x = 15,383.37 × 6,111.83
4. Step 4: Simplify right side
   11,147.40x = 94,020,580.73
5. Step 5: Solve for x
   x = 94,020,580.73/11,147.40
6. Step 6: Final answer
   x = 8,434.31