Finding the Fourth Proportional to 16,649.51, 24,961.95 and 7,874.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,649.51 : 24,961.95 = 7,874.15 : x
2. Step 2: Convert to fraction form
   16,649.51/24,961.95 = 7,874.15/x
3. Step 3: Cross multiply
   16,649.51x = 24,961.95 × 7,874.15
4. Step 4: Simplify right side
   16,649.51x = 196,554,013.78
5. Step 5: Solve for x
   x = 196,554,013.78/16,649.51
6. Step 6: Final answer
   x = 11,805.40