Finding the Fourth Proportional to 8,969.16, 12,377.34 and 4,990.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,969.16 : 12,377.34 = 4,990.62 : x
2. Step 2: Convert to fraction form
   8,969.16/12,377.34 = 4,990.62/x
3. Step 3: Cross multiply
   8,969.16x = 12,377.34 × 4,990.62
4. Step 4: Simplify right side
   8,969.16x = 61,770,600.55
5. Step 5: Solve for x
   x = 61,770,600.55/8,969.16
6. Step 6: Final answer
   x = 6,887.00