Finding the Fourth Proportional to 6,965.94, 9,612.82 and 3,899.74

Step by Step Solution

1. Step 1: Write the proportion equation
   6,965.94 : 9,612.82 = 3,899.74 : x
2. Step 2: Convert to fraction form
   6,965.94/9,612.82 = 3,899.74/x
3. Step 3: Cross multiply
   6,965.94x = 9,612.82 × 3,899.74
4. Step 4: Simplify right side
   6,965.94x = 37,487,498.67
5. Step 5: Solve for x
   x = 37,487,498.67/6,965.94
6. Step 6: Final answer
   x = 5,381.54