Finding the Fourth Proportional to 13,046.79, 18,003.38 and 7,382.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,046.79 : 18,003.38 = 7,382.05 : x
2. Step 2: Convert to fraction form
   13,046.79/18,003.38 = 7,382.05/x
3. Step 3: Cross multiply
   13,046.79x = 18,003.38 × 7,382.05
4. Step 4: Simplify right side
   13,046.79x = 132,901,814.42
5. Step 5: Solve for x
   x = 132,901,814.42/13,046.79
6. Step 6: Final answer
   x = 10,186.56