Finding the Fourth Proportional to 9,808.74, 13,535.72 and 5,616.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,808.74 : 13,535.72 = 5,616.18 : x
2. Step 2: Convert to fraction form
   9,808.74/13,535.72 = 5,616.18/x
3. Step 3: Cross multiply
   9,808.74x = 13,535.72 × 5,616.18
4. Step 4: Simplify right side
   9,808.74x = 76,019,011.87
5. Step 5: Solve for x
   x = 76,019,011.87/9,808.74
6. Step 6: Final answer
   x = 7,750.13