Finding the Fourth Proportional to 9,019.31, 13,528.94 and 2,445.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,019.31 : 13,528.94 = 2,445.48 : x
2. Step 2: Convert to fraction form
   9,019.31/13,528.94 = 2,445.48/x
3. Step 3: Cross multiply
   9,019.31x = 13,528.94 × 2,445.48
4. Step 4: Simplify right side
   9,019.31x = 33,084,739.96
5. Step 5: Solve for x
   x = 33,084,739.96/9,019.31
6. Step 6: Final answer
   x = 3,668.21