Finding the Fourth Proportional to 8,110.72, 11,189.50 and 5,724.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,110.72 : 11,189.50 = 5,724.16 : x
2. Step 2: Convert to fraction form
   8,110.72/11,189.50 = 5,724.16/x
3. Step 3: Cross multiply
   8,110.72x = 11,189.50 × 5,724.16
4. Step 4: Simplify right side
   8,110.72x = 64,050,488.32
5. Step 5: Solve for x
   x = 64,050,488.32/8,110.72
6. Step 6: Final answer
   x = 7,897.02