Finding the Fourth Proportional to 42,734.72, 58,982.07 and 28,173.35

Step by Step Solution

1. Step 1: Write the proportion equation
   42,734.72 : 58,982.07 = 28,173.35 : x
2. Step 2: Convert to fraction form
   42,734.72/58,982.07 = 28,173.35/x
3. Step 3: Cross multiply
   42,734.72x = 58,982.07 × 28,173.35
4. Step 4: Simplify right side
   42,734.72x = 1,661,722,501.83
5. Step 5: Solve for x
   x = 1,661,722,501.83/42,734.72
6. Step 6: Final answer
   x = 38,884.60