Finding the Fourth Proportional to 5,492.04, 8,198.32 and 5,123.20

Step by Step Solution

1. Step 1: Write the proportion equation
   5,492.04 : 8,198.32 = 5,123.20 : x
2. Step 2: Convert to fraction form
   5,492.04/8,198.32 = 5,123.20/x
3. Step 3: Cross multiply
   5,492.04x = 8,198.32 × 5,123.20
4. Step 4: Simplify right side
   5,492.04x = 42,001,633.02
5. Step 5: Solve for x
   x = 42,001,633.02/5,492.04
6. Step 6: Final answer
   x = 7,647.73