Finding the Fourth Proportional to 10,742.79, 16,111.02 and 4,167.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,742.79 : 16,111.02 = 4,167.42 : x
2. Step 2: Convert to fraction form
   10,742.79/16,111.02 = 4,167.42/x
3. Step 3: Cross multiply
   10,742.79x = 16,111.02 × 4,167.42
4. Step 4: Simplify right side
   10,742.79x = 67,141,386.97
5. Step 5: Solve for x
   x = 67,141,386.97/10,742.79
6. Step 6: Final answer
   x = 6,249.90