Finding the Fourth Proportional to 8,899.48, 12,280.89 and 4,866.23

Step by Step Solution

1. Step 1: Write the proportion equation
   8,899.48 : 12,280.89 = 4,866.23 : x
2. Step 2: Convert to fraction form
   8,899.48/12,280.89 = 4,866.23/x
3. Step 3: Cross multiply
   8,899.48x = 12,280.89 × 4,866.23
4. Step 4: Simplify right side
   8,899.48x = 59,761,635.34
5. Step 5: Solve for x
   x = 59,761,635.34/8,899.48
6. Step 6: Final answer
   x = 6,715.19