Finding the Fourth Proportional to 5,777.74, 7,970.46 and 3,787.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,777.74 : 7,970.46 = 3,787.42 : x
2. Step 2: Convert to fraction form
   5,777.74/7,970.46 = 3,787.42/x
3. Step 3: Cross multiply
   5,777.74x = 7,970.46 × 3,787.42
4. Step 4: Simplify right side
   5,777.74x = 30,187,479.61
5. Step 5: Solve for x
   x = 30,187,479.61/5,777.74
6. Step 6: Final answer
   x = 5,224.79