Finding the Fourth Proportional to 11,057.61, 15,258.89 and 6,276.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11,057.61 : 15,258.89 = 6,276.29 : x
2. Step 2: Convert to fraction form
   11,057.61/15,258.89 = 6,276.29/x
3. Step 3: Cross multiply
   11,057.61x = 15,258.89 × 6,276.29
4. Step 4: Simplify right side
   11,057.61x = 95,769,111.04
5. Step 5: Solve for x
   x = 95,769,111.04/11,057.61
6. Step 6: Final answer
   x = 8,660.92