Finding the Fourth Proportional to 3,866.01, 5,357.55 and 3,792.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,866.01 : 5,357.55 = 3,792.17 : x
2. Step 2: Convert to fraction form
   3,866.01/5,357.55 = 3,792.17/x
3. Step 3: Cross multiply
   3,866.01x = 5,357.55 × 3,792.17
4. Step 4: Simplify right side
   3,866.01x = 20,316,713.60
5. Step 5: Solve for x
   x = 20,316,713.60/3,866.01
6. Step 6: Final answer
   x = 5,255.21