Finding the Fourth Proportional to 5,498.40, 8,234.83 and 5,457.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,498.40 : 8,234.83 = 5,457.42 : x
2. Step 2: Convert to fraction form
   5,498.40/8,234.83 = 5,457.42/x
3. Step 3: Cross multiply
   5,498.40x = 8,234.83 × 5,457.42
4. Step 4: Simplify right side
   5,498.40x = 44,940,925.94
5. Step 5: Solve for x
   x = 44,940,925.94/5,498.40
6. Step 6: Final answer
   x = 8,173.46