Finding the Fourth Proportional to 5,855.13, 8,076.78 and 3,726.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,855.13 : 8,076.78 = 3,726.72 : x
2. Step 2: Convert to fraction form
   5,855.13/8,076.78 = 3,726.72/x
3. Step 3: Cross multiply
   5,855.13x = 8,076.78 × 3,726.72
4. Step 4: Simplify right side
   5,855.13x = 30,099,897.56
5. Step 5: Solve for x
   x = 30,099,897.56/5,855.13
6. Step 6: Final answer
   x = 5,140.77