Finding the Fourth Proportional to 11,197.12, 16,784.72 and 4,171.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,197.12 : 16,784.72 = 4,171.98 : x
2. Step 2: Convert to fraction form
   11,197.12/16,784.72 = 4,171.98/x
3. Step 3: Cross multiply
   11,197.12x = 16,784.72 × 4,171.98
4. Step 4: Simplify right side
   11,197.12x = 70,025,516.15
5. Step 5: Solve for x
   x = 70,025,516.15/11,197.12
6. Step 6: Final answer
   x = 6,253.89