Finding the Fourth Proportional to 30,554.20, 42,107.72 and 23,829.20

Step by Step Solution

1. Step 1: Write the proportion equation
   30,554.20 : 42,107.72 = 23,829.20 : x
2. Step 2: Convert to fraction form
   30,554.20/42,107.72 = 23,829.20/x
3. Step 3: Cross multiply
   30,554.20x = 42,107.72 × 23,829.20
4. Step 4: Simplify right side
   30,554.20x = 1,003,393,281.42
5. Step 5: Solve for x
   x = 1,003,393,281.42/30,554.20
6. Step 6: Final answer
   x = 32,839.78