Finding the Fourth Proportional to 7,043.43, 10,568.79 and 5,111.58

Step by Step Solution

1. Step 1: Write the proportion equation
   7,043.43 : 10,568.79 = 5,111.58 : x
2. Step 2: Convert to fraction form
   7,043.43/10,568.79 = 5,111.58/x
3. Step 3: Cross multiply
   7,043.43x = 10,568.79 × 5,111.58
4. Step 4: Simplify right side
   7,043.43x = 54,023,215.59
5. Step 5: Solve for x
   x = 54,023,215.59/7,043.43
6. Step 6: Final answer
   x = 7,670.02