Finding the Fourth Proportional to 22,290.32, 30,741.01 and 13,791.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,290.32 : 30,741.01 = 13,791.09 : x
2. Step 2: Convert to fraction form
   22,290.32/30,741.01 = 13,791.09/x
3. Step 3: Cross multiply
   22,290.32x = 30,741.01 × 13,791.09
4. Step 4: Simplify right side
   22,290.32x = 423,952,035.60
5. Step 5: Solve for x
   x = 423,952,035.60/22,290.32
6. Step 6: Final answer
   x = 19,019.56