Finding the Fourth Proportional to 5,355.72, 7,389.90 and 3,443.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,355.72 : 7,389.90 = 3,443.22 : x
2. Step 2: Convert to fraction form
   5,355.72/7,389.90 = 3,443.22/x
3. Step 3: Cross multiply
   5,355.72x = 7,389.90 × 3,443.22
4. Step 4: Simplify right side
   5,355.72x = 25,445,051.48
5. Step 5: Solve for x
   x = 25,445,051.48/5,355.72
6. Step 6: Final answer
   x = 4,751.00