Finding the Fourth Proportional to 5,687.94, 7,852.46 and 3,929.01

Step by Step Solution

1. Step 1: Write the proportion equation
   5,687.94 : 7,852.46 = 3,929.01 : x
2. Step 2: Convert to fraction form
   5,687.94/7,852.46 = 3,929.01/x
3. Step 3: Cross multiply
   5,687.94x = 7,852.46 × 3,929.01
4. Step 4: Simplify right side
   5,687.94x = 30,852,374.22
5. Step 5: Solve for x
   x = 30,852,374.22/5,687.94
6. Step 6: Final answer
   x = 5,424.17