Finding the Fourth Proportional to 42,641.32, 58,850.58 and 30,744.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,641.32 : 58,850.58 = 30,744.04 : x
2. Step 2: Convert to fraction form
   42,641.32/58,850.58 = 30,744.04/x
3. Step 3: Cross multiply
   42,641.32x = 58,850.58 × 30,744.04
4. Step 4: Simplify right side
   42,641.32x = 1,809,304,585.54
5. Step 5: Solve for x
   x = 1,809,304,585.54/42,641.32
6. Step 6: Final answer
   x = 42,430.78