Finding the Fourth Proportional to 42,558.24, 58,669.92 and 30,617.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,558.24 : 58,669.92 = 30,617.76 : x
2. Step 2: Convert to fraction form
   42,558.24/58,669.92 = 30,617.76/x
3. Step 3: Cross multiply
   42,558.24x = 58,669.92 × 30,617.76
4. Step 4: Simplify right side
   42,558.24x = 1,796,341,529.78
5. Step 5: Solve for x
   x = 1,796,341,529.78/42,558.24
6. Step 6: Final answer
   x = 42,209.02