Finding the Fourth Proportional to 42,715.32, 58,974.85 and 38,231.29

Step by Step Solution

1. Step 1: Write the proportion equation
   42,715.32 : 58,974.85 = 38,231.29 : x
2. Step 2: Convert to fraction form
   42,715.32/58,974.85 = 38,231.29/x
3. Step 3: Cross multiply
   42,715.32x = 58,974.85 × 38,231.29
4. Step 4: Simplify right side
   42,715.32x = 2,254,684,593.06
5. Step 5: Solve for x
   x = 2,254,684,593.06/42,715.32
6. Step 6: Final answer
   x = 52,783.99