Finding the Fourth Proportional to 42,563.49, 58,710.99 and 30,607.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,563.49 : 58,710.99 = 30,607.89 : x
2. Step 2: Convert to fraction form
   42,563.49/58,710.99 = 30,607.89/x
3. Step 3: Cross multiply
   42,563.49x = 58,710.99 × 30,607.89
4. Step 4: Simplify right side
   42,563.49x = 1,797,019,523.71
5. Step 5: Solve for x
   x = 1,797,019,523.71/42,563.49
6. Step 6: Final answer
   x = 42,219.74