Finding the Fourth Proportional to 7,111.43, 10,662.58 and 2,954.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,111.43 : 10,662.58 = 2,954.31 : x
2. Step 2: Convert to fraction form
   7,111.43/10,662.58 = 2,954.31/x
3. Step 3: Cross multiply
   7,111.43x = 10,662.58 × 2,954.31
4. Step 4: Simplify right side
   7,111.43x = 31,500,566.72
5. Step 5: Solve for x
   x = 31,500,566.72/7,111.43
6. Step 6: Final answer
   x = 4,429.57