Finding the Fourth Proportional to 11,419.48, 15,752.10 and 8,443

Step by Step Solution

1. Step 1: Write the proportion equation
   11,419.48 : 15,752.10 = 8,443 : x
2. Step 2: Convert to fraction form
   11,419.48/15,752.10 = 8,443/x
3. Step 3: Cross multiply
   11,419.48x = 15,752.10 × 8,443
4. Step 4: Simplify right side
   11,419.48x = 132,994,980.30
5. Step 5: Solve for x
   x = 132,994,980.30/11,419.48
6. Step 6: Final answer
   x = 11,646.33