Finding the Fourth Proportional to 13,409.83, 18,507.76 and 7,443.41

Step by Step Solution

1. Step 1: Write the proportion equation
   13,409.83 : 18,507.76 = 7,443.41 : x
2. Step 2: Convert to fraction form
   13,409.83/18,507.76 = 7,443.41/x
3. Step 3: Cross multiply
   13,409.83x = 18,507.76 × 7,443.41
4. Step 4: Simplify right side
   13,409.83x = 137,760,873.52
5. Step 5: Solve for x
   x = 137,760,873.52/13,409.83
6. Step 6: Final answer
   x = 10,273.13