Finding the Fourth Proportional to 5,429.94, 7,491.60 and 3,191.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,429.94 : 7,491.60 = 3,191.10 : x
2. Step 2: Convert to fraction form
   5,429.94/7,491.60 = 3,191.10/x
3. Step 3: Cross multiply
   5,429.94x = 7,491.60 × 3,191.10
4. Step 4: Simplify right side
   5,429.94x = 23,906,444.76
5. Step 5: Solve for x
   x = 23,906,444.76/5,429.94
6. Step 6: Final answer
   x = 4,402.71