Finding the Fourth Proportional to 5,429.38, 7,492.42 and 3,071.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,429.38 : 7,492.42 = 3,071.50 : x
2. Step 2: Convert to fraction form
   5,429.38/7,492.42 = 3,071.50/x
3. Step 3: Cross multiply
   5,429.38x = 7,492.42 × 3,071.50
4. Step 4: Simplify right side
   5,429.38x = 23,012,968.03
5. Step 5: Solve for x
   x = 23,012,968.03/5,429.38
6. Step 6: Final answer
   x = 4,238.60