Finding the Fourth Proportional to 5,290.19, 7,300.37 and 3,167.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,290.19 : 7,300.37 = 3,167.28 : x
2. Step 2: Convert to fraction form
   5,290.19/7,300.37 = 3,167.28/x
3. Step 3: Cross multiply
   5,290.19x = 7,300.37 × 3,167.28
4. Step 4: Simplify right side
   5,290.19x = 23,122,300.06
5. Step 5: Solve for x
   x = 23,122,300.06/5,290.19
6. Step 6: Final answer
   x = 4,370.79