Finding the Fourth Proportional to 8,847.72, 12,210.71 and 4,869.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,847.72 : 12,210.71 = 4,869.59 : x
2. Step 2: Convert to fraction form
   8,847.72/12,210.71 = 4,869.59/x
3. Step 3: Cross multiply
   8,847.72x = 12,210.71 × 4,869.59
4. Step 4: Simplify right side
   8,847.72x = 59,461,065.91
5. Step 5: Solve for x
   x = 59,461,065.91/8,847.72
6. Step 6: Final answer
   x = 6,720.50