Finding the Fourth Proportional to 11,737.76, 16,197.72 and 7,019.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,737.76 : 16,197.72 = 7,019.60 : x
2. Step 2: Convert to fraction form
   11,737.76/16,197.72 = 7,019.60/x
3. Step 3: Cross multiply
   11,737.76x = 16,197.72 × 7,019.60
4. Step 4: Simplify right side
   11,737.76x = 113,701,515.31
5. Step 5: Solve for x
   x = 113,701,515.31/11,737.76
6. Step 6: Final answer
   x = 9,686.82