Finding the Fourth Proportional to 5,091.34, 7,022.42 and 4,147.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,091.34 : 7,022.42 = 4,147.16 : x
2. Step 2: Convert to fraction form
   5,091.34/7,022.42 = 4,147.16/x
3. Step 3: Cross multiply
   5,091.34x = 7,022.42 × 4,147.16
4. Step 4: Simplify right side
   5,091.34x = 29,123,099.33
5. Step 5: Solve for x
   x = 29,123,099.33/5,091.34
6. Step 6: Final answer
   x = 5,720.12