Finding the Fourth Proportional to 5,290.05, 7,297.82 and 3,719.07

Step by Step Solution

1. Step 1: Write the proportion equation
   5,290.05 : 7,297.82 = 3,719.07 : x
2. Step 2: Convert to fraction form
   5,290.05/7,297.82 = 3,719.07/x
3. Step 3: Cross multiply
   5,290.05x = 7,297.82 × 3,719.07
4. Step 4: Simplify right side
   5,290.05x = 27,141,084.83
5. Step 5: Solve for x
   x = 27,141,084.83/5,290.05
6. Step 6: Final answer
   x = 5,130.59