Finding the Fourth Proportional to 5,872.61, 8,106.41 and 3,885.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,872.61 : 8,106.41 = 3,885.89 : x
2. Step 2: Convert to fraction form
   5,872.61/8,106.41 = 3,885.89/x
3. Step 3: Cross multiply
   5,872.61x = 8,106.41 × 3,885.89
4. Step 4: Simplify right side
   5,872.61x = 31,500,586.74
5. Step 5: Solve for x
   x = 31,500,586.74/5,872.61
6. Step 6: Final answer
   x = 5,363.98