Finding the Fourth Proportional to 22,290.42, 33,435.30 and 5,423.58

Step by Step Solution

1. Step 1: Write the proportion equation
   22,290.42 : 33,435.30 = 5,423.58 : x
2. Step 2: Convert to fraction form
   22,290.42/33,435.30 = 5,423.58/x
3. Step 3: Cross multiply
   22,290.42x = 33,435.30 × 5,423.58
4. Step 4: Simplify right side
   22,290.42x = 181,339,024.37
5. Step 5: Solve for x
   x = 181,339,024.37/22,290.42
6. Step 6: Final answer
   x = 8,135.29