Finding the Fourth Proportional to 5,349.33, 7,381.89 and 2,991.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,349.33 : 7,381.89 = 2,991.47 : x
2. Step 2: Convert to fraction form
   5,349.33/7,381.89 = 2,991.47/x
3. Step 3: Cross multiply
   5,349.33x = 7,381.89 × 2,991.47
4. Step 4: Simplify right side
   5,349.33x = 22,082,665.57
5. Step 5: Solve for x
   x = 22,082,665.57/5,349.33
6. Step 6: Final answer
   x = 4,128.12