Finding the Fourth Proportional to 17,721.50, 26,580.71 and 5,874.03

Step by Step Solution

1. Step 1: Write the proportion equation
   17,721.50 : 26,580.71 = 5,874.03 : x
2. Step 2: Convert to fraction form
   17,721.50/26,580.71 = 5,874.03/x
3. Step 3: Cross multiply
   17,721.50x = 26,580.71 × 5,874.03
4. Step 4: Simplify right side
   17,721.50x = 156,135,858.59
5. Step 5: Solve for x
   x = 156,135,858.59/17,721.50
6. Step 6: Final answer
   x = 8,810.54