Finding the Fourth Proportional to 6,870.01, 9,480.73 and 3,726.20

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.01 : 9,480.73 = 3,726.20 : x
2. Step 2: Convert to fraction form
   6,870.01/9,480.73 = 3,726.20/x
3. Step 3: Cross multiply
   6,870.01x = 9,480.73 × 3,726.20
4. Step 4: Simplify right side
   6,870.01x = 35,327,048.72
5. Step 5: Solve for x
   x = 35,327,048.72/6,870.01
6. Step 6: Final answer
   x = 5,142.21