Finding the Fourth Proportional to 42,643.89, 58,872.69 and 29,570.49

Step by Step Solution

1. Step 1: Write the proportion equation
   42,643.89 : 58,872.69 = 29,570.49 : x
2. Step 2: Convert to fraction form
   42,643.89/58,872.69 = 29,570.49/x
3. Step 3: Cross multiply
   42,643.89x = 58,872.69 × 29,570.49
4. Step 4: Simplify right side
   42,643.89x = 1,740,894,290.92
5. Step 5: Solve for x
   x = 1,740,894,290.92/42,643.89
6. Step 6: Final answer
   x = 40,824.00