Finding the Fourth Proportional to 14,080.24, 21,105.72 and 7,419.76

Step by Step Solution

1. Step 1: Write the proportion equation
   14,080.24 : 21,105.72 = 7,419.76 : x
2. Step 2: Convert to fraction form
   14,080.24/21,105.72 = 7,419.76/x
3. Step 3: Cross multiply
   14,080.24x = 21,105.72 × 7,419.76
4. Step 4: Simplify right side
   14,080.24x = 156,599,377.03
5. Step 5: Solve for x
   x = 156,599,377.03/14,080.24
6. Step 6: Final answer
   x = 11,121.93