Finding the Fourth Proportional to 8,877.79, 12,255.37 and 5,648.93

Step by Step Solution

1. Step 1: Write the proportion equation
   8,877.79 : 12,255.37 = 5,648.93 : x
2. Step 2: Convert to fraction form
   8,877.79/12,255.37 = 5,648.93/x
3. Step 3: Cross multiply
   8,877.79x = 12,255.37 × 5,648.93
4. Step 4: Simplify right side
   8,877.79x = 69,229,743.77
5. Step 5: Solve for x
   x = 69,229,743.77/8,877.79
6. Step 6: Final answer
   x = 7,798.09