Finding the Fourth Proportional to 7,091.86, 10,638.50 and 2,713

Step by Step Solution

1. Step 1: Write the proportion equation
   7,091.86 : 10,638.50 = 2,713 : x
2. Step 2: Convert to fraction form
   7,091.86/10,638.50 = 2,713/x
3. Step 3: Cross multiply
   7,091.86x = 10,638.50 × 2,713
4. Step 4: Simplify right side
   7,091.86x = 28,862,236.94
5. Step 5: Solve for x
   x = 28,862,236.94/7,091.86
6. Step 6: Final answer
   x = 4,069.77