Finding the Fourth Proportional to 13,003.26, 17,938.71 and 8,285.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,003.26 : 17,938.71 = 8,285.82 : x
2. Step 2: Convert to fraction form
   13,003.26/17,938.71 = 8,285.82/x
3. Step 3: Cross multiply
   13,003.26x = 17,938.71 × 8,285.82
4. Step 4: Simplify right side
   13,003.26x = 148,636,922.09
5. Step 5: Solve for x
   x = 148,636,922.09/13,003.26
6. Step 6: Final answer
   x = 11,430.74