Finding the Fourth Proportional to 6,910.79, 10,356.36 and 5,323.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,910.79 : 10,356.36 = 5,323.50 : x
2. Step 2: Convert to fraction form
   6,910.79/10,356.36 = 5,323.50/x
3. Step 3: Cross multiply
   6,910.79x = 10,356.36 × 5,323.50
4. Step 4: Simplify right side
   6,910.79x = 55,132,082.46
5. Step 5: Solve for x
   x = 55,132,082.46/6,910.79
6. Step 6: Final answer
   x = 7,977.69