Finding the Fourth Proportional to 13,419.74, 18,519.28 and 7,452.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,419.74 : 18,519.28 = 7,452.52 : x
2. Step 2: Convert to fraction form
   13,419.74/18,519.28 = 7,452.52/x
3. Step 3: Cross multiply
   13,419.74x = 18,519.28 × 7,452.52
4. Step 4: Simplify right side
   13,419.74x = 138,015,385.75
5. Step 5: Solve for x
   x = 138,015,385.75/13,419.74
6. Step 6: Final answer
   x = 10,284.50