Finding the Fourth Proportional to 11,308.73, 15,591.70 and 8,082.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,308.73 : 15,591.70 = 8,082.40 : x
2. Step 2: Convert to fraction form
   11,308.73/15,591.70 = 8,082.40/x
3. Step 3: Cross multiply
   11,308.73x = 15,591.70 × 8,082.40
4. Step 4: Simplify right side
   11,308.73x = 126,018,296.89
5. Step 5: Solve for x
   x = 126,018,296.89/11,308.73
6. Step 6: Final answer
   x = 11,143.46