Finding the Fourth Proportional to 7,111.17, 10,662.18 and 2,954.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,111.17 : 10,662.18 = 2,954.05 : x
2. Step 2: Convert to fraction form
   7,111.17/10,662.18 = 2,954.05/x
3. Step 3: Cross multiply
   7,111.17x = 10,662.18 × 2,954.05
4. Step 4: Simplify right side
   7,111.17x = 31,496,612.83
5. Step 5: Solve for x
   x = 31,496,612.83/7,111.17
6. Step 6: Final answer
   x = 4,429.17