Finding the Fourth Proportional to 8,884.86, 12,259.90 and 5,056.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,884.86 : 12,259.90 = 5,056.57 : x
2. Step 2: Convert to fraction form
   8,884.86/12,259.90 = 5,056.57/x
3. Step 3: Cross multiply
   8,884.86x = 12,259.90 × 5,056.57
4. Step 4: Simplify right side
   8,884.86x = 61,993,042.54
5. Step 5: Solve for x
   x = 61,993,042.54/8,884.86
6. Step 6: Final answer
   x = 6,977.38