Finding the Fourth Proportional to 9,019.45, 13,530.46 and 2,779.97

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.45 : 13,530.46 = 2,779.97 : x
2. Step 2: Convert to fraction form
   9,019.45/13,530.46 = 2,779.97/x
3. Step 3: Cross multiply
   9,019.45x = 13,530.46 × 2,779.97
4. Step 4: Simplify right side
   9,019.45x = 37,614,272.89
5. Step 5: Solve for x
   x = 37,614,272.89/9,019.45
6. Step 6: Final answer
   x = 4,170.35