Finding the Fourth Proportional to 6,957.39, 10,419.69 and 5,384.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,957.39 : 10,419.69 = 5,384.80 : x
2. Step 2: Convert to fraction form
   6,957.39/10,419.69 = 5,384.80/x
3. Step 3: Cross multiply
   6,957.39x = 10,419.69 × 5,384.80
4. Step 4: Simplify right side
   6,957.39x = 56,107,978.95
5. Step 5: Solve for x
   x = 56,107,978.95/6,957.39
6. Step 6: Final answer
   x = 8,064.51