Finding the Fourth Proportional to 8,805.78, 12,151.42 and 4,826.13

Step by Step Solution

1. Step 1: Write the proportion equation
   8,805.78 : 12,151.42 = 4,826.13 : x
2. Step 2: Convert to fraction form
   8,805.78/12,151.42 = 4,826.13/x
3. Step 3: Cross multiply
   8,805.78x = 12,151.42 × 4,826.13
4. Step 4: Simplify right side
   8,805.78x = 58,644,332.60
5. Step 5: Solve for x
   x = 58,644,332.60/8,805.78
6. Step 6: Final answer
   x = 6,659.75