Finding the Fourth Proportional to 42,285.75, 58,328.69 and 27,945.71

Step by Step Solution

1. Step 1: Write the proportion equation
   42,285.75 : 58,328.69 = 27,945.71 : x
2. Step 2: Convert to fraction form
   42,285.75/58,328.69 = 27,945.71/x
3. Step 3: Cross multiply
   42,285.75x = 58,328.69 × 27,945.71
4. Step 4: Simplify right side
   42,285.75x = 1,630,036,224.05
5. Step 5: Solve for x
   x = 1,630,036,224.05/42,285.75
6. Step 6: Final answer
   x = 38,548.12