Finding the Fourth Proportional to 9,211.82, 13,818.56 and 2,971.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,211.82 : 13,818.56 = 2,971.98 : x
2. Step 2: Convert to fraction form
   9,211.82/13,818.56 = 2,971.98/x
3. Step 3: Cross multiply
   9,211.82x = 13,818.56 × 2,971.98
4. Step 4: Simplify right side
   9,211.82x = 41,068,469.09
5. Step 5: Solve for x
   x = 41,068,469.09/9,211.82
6. Step 6: Final answer
   x = 4,458.24