Finding the Fourth Proportional to 42,085.92, 58,010.39 and 36,621

Step by Step Solution

1. Step 1: Write the proportion equation
   42,085.92 : 58,010.39 = 36,621 : x
2. Step 2: Convert to fraction form
   42,085.92/58,010.39 = 36,621/x
3. Step 3: Cross multiply
   42,085.92x = 58,010.39 × 36,621
4. Step 4: Simplify right side
   42,085.92x = 2,124,398,492.19
5. Step 5: Solve for x
   x = 2,124,398,492.19/42,085.92
6. Step 6: Final answer
   x = 50,477.65