Finding the Fourth Proportional to 9,891.72, 14,806.62 and 5,495.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,891.72 : 14,806.62 = 5,495.04 : x
2. Step 2: Convert to fraction form
   9,891.72/14,806.62 = 5,495.04/x
3. Step 3: Cross multiply
   9,891.72x = 14,806.62 × 5,495.04
4. Step 4: Simplify right side
   9,891.72x = 81,362,969.16
5. Step 5: Solve for x
   x = 81,362,969.16/9,891.72
6. Step 6: Final answer
   x = 8,225.36