Finding the Fourth Proportional to 8,111.40, 11,186.86 and 5,597.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,111.40 : 11,186.86 = 5,597.52 : x
2. Step 2: Convert to fraction form
   8,111.40/11,186.86 = 5,597.52/x
3. Step 3: Cross multiply
   8,111.40x = 11,186.86 × 5,597.52
4. Step 4: Simplify right side
   8,111.40x = 62,618,672.59
5. Step 5: Solve for x
   x = 62,618,672.59/8,111.40
6. Step 6: Final answer
   x = 7,719.84