Finding the Fourth Proportional to 11,200.77, 15,456.72 and 6,165

Step by Step Solution

1. Step 1: Write the proportion equation
   11,200.77 : 15,456.72 = 6,165 : x
2. Step 2: Convert to fraction form
   11,200.77/15,456.72 = 6,165/x
3. Step 3: Cross multiply
   11,200.77x = 15,456.72 × 6,165
4. Step 4: Simplify right side
   11,200.77x = 95,290,678.80
5. Step 5: Solve for x
   x = 95,290,678.80/11,200.77
6. Step 6: Final answer
   x = 8,507.51