Finding the Fourth Proportional to 5,429.98, 7,493.25 and 3,072.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,429.98 : 7,493.25 = 3,072.16 : x
2. Step 2: Convert to fraction form
   5,429.98/7,493.25 = 3,072.16/x
3. Step 3: Cross multiply
   5,429.98x = 7,493.25 × 3,072.16
4. Step 4: Simplify right side
   5,429.98x = 23,020,462.92
5. Step 5: Solve for x
   x = 23,020,462.92/5,429.98
6. Step 6: Final answer
   x = 4,239.51