Finding the Fourth Proportional to 42,192.38, 58,212.33 and 28,047.62

Step by Step Solution

1. Step 1: Write the proportion equation
   42,192.38 : 58,212.33 = 28,047.62 : x
2. Step 2: Convert to fraction form
   42,192.38/58,212.33 = 28,047.62/x
3. Step 3: Cross multiply
   42,192.38x = 58,212.33 × 28,047.62
4. Step 4: Simplify right side
   42,192.38x = 1,632,717,311.15
5. Step 5: Solve for x
   x = 1,632,717,311.15/42,192.38
6. Step 6: Final answer
   x = 38,696.97