Finding the Fourth Proportional to 9,211.50, 13,819.94 and 2,971.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,211.50 : 13,819.94 = 2,971.38 : x
2. Step 2: Convert to fraction form
   9,211.50/13,819.94 = 2,971.38/x
3. Step 3: Cross multiply
   9,211.50x = 13,819.94 × 2,971.38
4. Step 4: Simplify right side
   9,211.50x = 41,064,293.32
5. Step 5: Solve for x
   x = 41,064,293.32/9,211.50
6. Step 6: Final answer
   x = 4,457.94