Finding the Fourth Proportional to 13,371.72, 18,452.50 and 7,403.64

Step by Step Solution

1. Step 1: Write the proportion equation
   13,371.72 : 18,452.50 = 7,403.64 : x
2. Step 2: Convert to fraction form
   13,371.72/18,452.50 = 7,403.64/x
3. Step 3: Cross multiply
   13,371.72x = 18,452.50 × 7,403.64
4. Step 4: Simplify right side
   13,371.72x = 136,615,667.10
5. Step 5: Solve for x
   x = 136,615,667.10/13,371.72
6. Step 6: Final answer
   x = 10,216.76