Finding the Fourth Proportional to 13,373.24, 18,454.28 and 7,404.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,373.24 : 18,454.28 = 7,404.56 : x
2. Step 2: Convert to fraction form
   13,373.24/18,454.28 = 7,404.56/x
3. Step 3: Cross multiply
   13,373.24x = 18,454.28 × 7,404.56
4. Step 4: Simplify right side
   13,373.24x = 136,645,823.52
5. Step 5: Solve for x
   x = 136,645,823.52/13,373.24
6. Step 6: Final answer
   x = 10,217.85