Finding the Fourth Proportional to 9,864.84, 13,613.70 and 5,616.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,864.84 : 13,613.70 = 5,616.12 : x
2. Step 2: Convert to fraction form
   9,864.84/13,613.70 = 5,616.12/x
3. Step 3: Cross multiply
   9,864.84x = 13,613.70 × 5,616.12
4. Step 4: Simplify right side
   9,864.84x = 76,456,172.84
5. Step 5: Solve for x
   x = 76,456,172.84/9,864.84
6. Step 6: Final answer
   x = 7,750.37