Finding the Fourth Proportional to 7,616.74, 10,515.04 and 5,254.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,616.74 : 10,515.04 = 5,254.78 : x
2. Step 2: Convert to fraction form
   7,616.74/10,515.04 = 5,254.78/x
3. Step 3: Cross multiply
   7,616.74x = 10,515.04 × 5,254.78
4. Step 4: Simplify right side
   7,616.74x = 55,254,221.89
5. Step 5: Solve for x
   x = 55,254,221.89/7,616.74
6. Step 6: Final answer
   x = 7,254.31