Finding the Fourth Proportional to 9,285.94, 13,934.31 and 3,739.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,285.94 : 13,934.31 = 3,739.78 : x
2. Step 2: Convert to fraction form
   9,285.94/13,934.31 = 3,739.78/x
3. Step 3: Cross multiply
   9,285.94x = 13,934.31 × 3,739.78
4. Step 4: Simplify right side
   9,285.94x = 52,111,253.85
5. Step 5: Solve for x
   x = 52,111,253.85/9,285.94
6. Step 6: Final answer
   x = 5,611.84