Finding the Fourth Proportional to 7,600.78, 11,383.86 and 5,250.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,600.78 : 11,383.86 = 5,250.10 : x
2. Step 2: Convert to fraction form
   7,600.78/11,383.86 = 5,250.10/x
3. Step 3: Cross multiply
   7,600.78x = 11,383.86 × 5,250.10
4. Step 4: Simplify right side
   7,600.78x = 59,766,320.22
5. Step 5: Solve for x
   x = 59,766,320.22/7,600.78
6. Step 6: Final answer
   x = 7,863.18