Finding the Fourth Proportional to 5,091.72, 7,026.53 and 2,853.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,091.72 : 7,026.53 = 2,853.69 : x
2. Step 2: Convert to fraction form
   5,091.72/7,026.53 = 2,853.69/x
3. Step 3: Cross multiply
   5,091.72x = 7,026.53 × 2,853.69
4. Step 4: Simplify right side
   5,091.72x = 20,051,524.13
5. Step 5: Solve for x
   x = 20,051,524.13/5,091.72
6. Step 6: Final answer
   x = 3,938.06