Finding the Fourth Proportional to 9,020.72, 13,532.52 and 2,779.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,020.72 : 13,532.52 = 2,779.22 : x
2. Step 2: Convert to fraction form
   9,020.72/13,532.52 = 2,779.22/x
3. Step 3: Cross multiply
   9,020.72x = 13,532.52 × 2,779.22
4. Step 4: Simplify right side
   9,020.72x = 37,609,850.23
5. Step 5: Solve for x
   x = 37,609,850.23/9,020.72
6. Step 6: Final answer
   x = 4,169.27