Finding the Fourth Proportional to 5,002.81, 7,487.91 and 3,686.04

Step by Step Solution

1. Step 1: Write the proportion equation
   5,002.81 : 7,487.91 = 3,686.04 : x
2. Step 2: Convert to fraction form
   5,002.81/7,487.91 = 3,686.04/x
3. Step 3: Cross multiply
   5,002.81x = 7,487.91 × 3,686.04
4. Step 4: Simplify right side
   5,002.81x = 27,600,735.78
5. Step 5: Solve for x
   x = 27,600,735.78/5,002.81
6. Step 6: Final answer
   x = 5,517.05