Finding the Fourth Proportional to 8,850.86, 12,219.24 and 5,870.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,850.86 : 12,219.24 = 5,870.78 : x
2. Step 2: Convert to fraction form
   8,850.86/12,219.24 = 5,870.78/x
3. Step 3: Cross multiply
   8,850.86x = 12,219.24 × 5,870.78
4. Step 4: Simplify right side
   8,850.86x = 71,736,469.81
5. Step 5: Solve for x
   x = 71,736,469.81/8,850.86
6. Step 6: Final answer
   x = 8,105.03