Finding the Fourth Proportional to 11,701.98, 16,148.72 and 6,396.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,701.98 : 16,148.72 = 6,396.80 : x
2. Step 2: Convert to fraction form
   11,701.98/16,148.72 = 6,396.80/x
3. Step 3: Cross multiply
   11,701.98x = 16,148.72 × 6,396.80
4. Step 4: Simplify right side
   11,701.98x = 103,300,019.37
5. Step 5: Solve for x
   x = 103,300,019.37/11,701.98
6. Step 6: Final answer
   x = 8,827.57