Finding the Fourth Proportional to 11,061.30, 15,264.81 and 6,345.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,061.30 : 15,264.81 = 6,345.78 : x
2. Step 2: Convert to fraction form
   11,061.30/15,264.81 = 6,345.78/x
3. Step 3: Cross multiply
   11,061.30x = 15,264.81 × 6,345.78
4. Step 4: Simplify right side
   11,061.30x = 96,867,126.00
5. Step 5: Solve for x
   x = 96,867,126.00/11,061.30
6. Step 6: Final answer
   x = 8,757.30