Finding the Fourth Proportional to 11,211.71, 16,811.71 and 4,185.93

Step by Step Solution

1. Step 1: Write the proportion equation
   11,211.71 : 16,811.71 = 4,185.93 : x
2. Step 2: Convert to fraction form
   11,211.71/16,811.71 = 4,185.93/x
3. Step 3: Cross multiply
   11,211.71x = 16,811.71 × 4,185.93
4. Step 4: Simplify right side
   11,211.71x = 70,372,693.82
5. Step 5: Solve for x
   x = 70,372,693.82/11,211.71
6. Step 6: Final answer
   x = 6,276.72