Finding the Fourth Proportional to 11,944.56, 16,483.72 and 7,169.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,944.56 : 16,483.72 = 7,169.20 : x
2. Step 2: Convert to fraction form
   11,944.56/16,483.72 = 7,169.20/x
3. Step 3: Cross multiply
   11,944.56x = 16,483.72 × 7,169.20
4. Step 4: Simplify right side
   11,944.56x = 118,175,085.42
5. Step 5: Solve for x
   x = 118,175,085.42/11,944.56
6. Step 6: Final answer
   x = 9,893.63