Finding the Fourth Proportional to 6,925.05, 10,379.34 and 5,284.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,925.05 : 10,379.34 = 5,284.80 : x
2. Step 2: Convert to fraction form
   6,925.05/10,379.34 = 5,284.80/x
3. Step 3: Cross multiply
   6,925.05x = 10,379.34 × 5,284.80
4. Step 4: Simplify right side
   6,925.05x = 54,852,736.03
5. Step 5: Solve for x
   x = 54,852,736.03/6,925.05
6. Step 6: Final answer
   x = 7,920.92