Finding the Fourth Proportional to 10,950.78, 16,410.78 and 5,013.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,950.78 : 16,410.78 = 5,013.10 : x
2. Step 2: Convert to fraction form
   10,950.78/16,410.78 = 5,013.10/x
3. Step 3: Cross multiply
   10,950.78x = 16,410.78 × 5,013.10
4. Step 4: Simplify right side
   10,950.78x = 82,268,881.22
5. Step 5: Solve for x
   x = 82,268,881.22/10,950.78
6. Step 6: Final answer
   x = 7,512.60