Finding the Fourth Proportional to 42,565.49, 58,713.76 and 30,609.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,565.49 : 58,713.76 = 30,609.89 : x
2. Step 2: Convert to fraction form
   42,565.49/58,713.76 = 30,609.89/x
3. Step 3: Cross multiply
   42,565.49x = 58,713.76 × 30,609.89
4. Step 4: Simplify right side
   42,565.49x = 1,797,221,735.09
5. Step 5: Solve for x
   x = 1,797,221,735.09/42,565.49
6. Step 6: Final answer
   x = 42,222.51