Finding the Fourth Proportional to 5,429.31, 7,492.55 and 3,071.94

Step by Step Solution

1. Step 1: Write the proportion equation
   5,429.31 : 7,492.55 = 3,071.94 : x
2. Step 2: Convert to fraction form
   5,429.31/7,492.55 = 3,071.94/x
3. Step 3: Cross multiply
   5,429.31x = 7,492.55 × 3,071.94
4. Step 4: Simplify right side
   5,429.31x = 23,016,648.69
5. Step 5: Solve for x
   x = 23,016,648.69/5,429.31
6. Step 6: Final answer
   x = 4,239.33