Finding the Fourth Proportional to 17,578.82, 26,377.98 and 7,197.86

Step by Step Solution

1. Step 1: Write the proportion equation
   17,578.82 : 26,377.98 = 7,197.86 : x
2. Step 2: Convert to fraction form
   17,578.82/26,377.98 = 7,197.86/x
3. Step 3: Cross multiply
   17,578.82x = 26,377.98 × 7,197.86
4. Step 4: Simplify right side
   17,578.82x = 189,865,007.12
5. Step 5: Solve for x
   x = 189,865,007.12/17,578.82
6. Step 6: Final answer
   x = 10,800.78