Finding the Fourth Proportional to 5,274.82, 7,278.33 and 3,996.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,274.82 : 7,278.33 = 3,996.10 : x
2. Step 2: Convert to fraction form
   5,274.82/7,278.33 = 3,996.10/x
3. Step 3: Cross multiply
   5,274.82x = 7,278.33 × 3,996.10
4. Step 4: Simplify right side
   5,274.82x = 29,084,934.51
5. Step 5: Solve for x
   x = 29,084,934.51/5,274.82
6. Step 6: Final answer
   x = 5,513.92