Finding the Fourth Proportional to 9,902.76, 14,809.98 and 8,984.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,902.76 : 14,809.98 = 8,984.04 : x
2. Step 2: Convert to fraction form
   9,902.76/14,809.98 = 8,984.04/x
3. Step 3: Cross multiply
   9,902.76x = 14,809.98 × 8,984.04
4. Step 4: Simplify right side
   9,902.76x = 133,053,452.72
5. Step 5: Solve for x
   x = 133,053,452.72/9,902.76
6. Step 6: Final answer
   x = 13,436.00