Finding the Fourth Proportional to 5,429.62, 7,492.46 and 3,071.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,429.62 : 7,492.46 = 3,071.91 : x
2. Step 2: Convert to fraction form
   5,429.62/7,492.46 = 3,071.91/x
3. Step 3: Cross multiply
   5,429.62x = 7,492.46 × 3,071.91
4. Step 4: Simplify right side
   5,429.62x = 23,016,162.80
5. Step 5: Solve for x
   x = 23,016,162.80/5,429.62
6. Step 6: Final answer
   x = 4,239.00