Finding the Fourth Proportional to 9,899.15, 13,660.99 and 5,422.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,899.15 : 13,660.99 = 5,422.82 : x
2. Step 2: Convert to fraction form
   9,899.15/13,660.99 = 5,422.82/x
3. Step 3: Cross multiply
   9,899.15x = 13,660.99 × 5,422.82
4. Step 4: Simplify right side
   9,899.15x = 74,081,007.93
5. Step 5: Solve for x
   x = 74,081,007.93/9,899.15
6. Step 6: Final answer
   x = 7,483.58