Finding the Fourth Proportional to 42,033.30, 58,006.20 and 23,170.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,033.30 : 58,006.20 = 23,170.42 : x
2. Step 2: Convert to fraction form
   42,033.30/58,006.20 = 23,170.42/x
3. Step 3: Cross multiply
   42,033.30x = 58,006.20 × 23,170.42
4. Step 4: Simplify right side
   42,033.30x = 1,344,028,016.60
5. Step 5: Solve for x
   x = 1,344,028,016.60/42,033.30
6. Step 6: Final answer
   x = 31,975.32