Finding the Fourth Proportional to 11,211.87, 15,471.72 and 6,496.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,211.87 : 15,471.72 = 6,496.05 : x
2. Step 2: Convert to fraction form
   11,211.87/15,471.72 = 6,496.05/x
3. Step 3: Cross multiply
   11,211.87x = 15,471.72 × 6,496.05
4. Step 4: Simplify right side
   11,211.87x = 100,505,066.71
5. Step 5: Solve for x
   x = 100,505,066.71/11,211.87
6. Step 6: Final answer
   x = 8,964.17