Finding the Fourth Proportional to 5,383.78, 7,429.71 and 2,993.95

Step by Step Solution

1. Step 1: Write the proportion equation
   5,383.78 : 7,429.71 = 2,993.95 : x
2. Step 2: Convert to fraction form
   5,383.78/7,429.71 = 2,993.95/x
3. Step 3: Cross multiply
   5,383.78x = 7,429.71 × 2,993.95
4. Step 4: Simplify right side
   5,383.78x = 22,244,180.25
5. Step 5: Solve for x
   x = 22,244,180.25/5,383.78
6. Step 6: Final answer
   x = 4,131.70