Finding the Fourth Proportional to 42,839.38, 59,056.32 and 29,389.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,839.38 : 59,056.32 = 29,389.60 : x
2. Step 2: Convert to fraction form
   42,839.38/59,056.32 = 29,389.60/x
3. Step 3: Cross multiply
   42,839.38x = 59,056.32 × 29,389.60
4. Step 4: Simplify right side
   42,839.38x = 1,735,641,622.27
5. Step 5: Solve for x
   x = 1,735,641,622.27/42,839.38
6. Step 6: Final answer
   x = 40,515.10