Finding the Fourth Proportional to 13,392.59, 18,481.43 and 7,424.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,392.59 : 18,481.43 = 7,424.24 : x
2. Step 2: Convert to fraction form
   13,392.59/18,481.43 = 7,424.24/x
3. Step 3: Cross multiply
   13,392.59x = 18,481.43 × 7,424.24
4. Step 4: Simplify right side
   13,392.59x = 137,210,498.02
5. Step 5: Solve for x
   x = 137,210,498.02/13,392.59
6. Step 6: Final answer
   x = 10,245.26