Finding the Fourth Proportional to 7,716.78, 10,669.86 and 7,362

Step by Step Solution

1. Step 1: Write the proportion equation
   7,716.78 : 10,669.86 = 7,362 : x
2. Step 2: Convert to fraction form
   7,716.78/10,669.86 = 7,362/x
3. Step 3: Cross multiply
   7,716.78x = 10,669.86 × 7,362
4. Step 4: Simplify right side
   7,716.78x = 78,551,509.32
5. Step 5: Solve for x
   x = 78,551,509.32/7,716.78
6. Step 6: Final answer
   x = 10,179.31