Finding the Fourth Proportional to 9,998.33, 13,797.61 and 5,522.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,998.33 : 13,797.61 = 5,522.38 : x
2. Step 2: Convert to fraction form
   9,998.33/13,797.61 = 5,522.38/x
3. Step 3: Cross multiply
   9,998.33x = 13,797.61 × 5,522.38
4. Step 4: Simplify right side
   9,998.33x = 76,195,597.21
5. Step 5: Solve for x
   x = 76,195,597.21/9,998.33
6. Step 6: Final answer
   x = 7,620.84