Finding the Fourth Proportional to 42,639.89, 58,843.28 and 23,520.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,639.89 : 58,843.28 = 23,520.34 : x
2. Step 2: Convert to fraction form
   42,639.89/58,843.28 = 23,520.34/x
3. Step 3: Cross multiply
   42,639.89x = 58,843.28 × 23,520.34
4. Step 4: Simplify right side
   42,639.89x = 1,384,013,864.01
5. Step 5: Solve for x
   x = 1,384,013,864.01/42,639.89
6. Step 6: Final answer
   x = 32,458.19