Finding the Fourth Proportional to 13,380.52, 18,465.25 and 7,412.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,380.52 : 18,465.25 = 7,412.27 : x
2. Step 2: Convert to fraction form
   13,380.52/18,465.25 = 7,412.27/x
3. Step 3: Cross multiply
   13,380.52x = 18,465.25 × 7,412.27
4. Step 4: Simplify right side
   13,380.52x = 136,869,418.62
5. Step 5: Solve for x
   x = 136,869,418.62/13,380.52
6. Step 6: Final answer
   x = 10,229.01