Finding the Fourth Proportional to 8,162.03, 12,248.49 and 5,242.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,162.03 : 12,248.49 = 5,242.43 : x
2. Step 2: Convert to fraction form
   8,162.03/12,248.49 = 5,242.43/x
3. Step 3: Cross multiply
   8,162.03x = 12,248.49 × 5,242.43
4. Step 4: Simplify right side
   8,162.03x = 64,211,851.43
5. Step 5: Solve for x
   x = 64,211,851.43/8,162.03
6. Step 6: Final answer
   x = 7,867.14