Finding the Fourth Proportional to 5,019.63, 7,526.73 and 3,986.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,019.63 : 7,526.73 = 3,986.28 : x
2. Step 2: Convert to fraction form
   5,019.63/7,526.73 = 3,986.28/x
3. Step 3: Cross multiply
   5,019.63x = 7,526.73 × 3,986.28
4. Step 4: Simplify right side
   5,019.63x = 30,003,653.26
5. Step 5: Solve for x
   x = 30,003,653.26/5,019.63
6. Step 6: Final answer
   x = 5,977.26