Finding the Fourth Proportional to 9,887.24, 13,643.98 and 5,410.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,887.24 : 13,643.98 = 5,410.88 : x
2. Step 2: Convert to fraction form
   9,887.24/13,643.98 = 5,410.88/x
3. Step 3: Cross multiply
   9,887.24x = 13,643.98 × 5,410.88
4. Step 4: Simplify right side
   9,887.24x = 73,825,938.50
5. Step 5: Solve for x
   x = 73,825,938.50/9,887.24
6. Step 6: Final answer
   x = 7,466.79