Finding the Fourth Proportional to 42,564.74, 58,712.72 and 30,609.14

Step by Step Solution

1. Step 1: Write the proportion equation
   42,564.74 : 58,712.72 = 30,609.14 : x
2. Step 2: Convert to fraction form
   42,564.74/58,712.72 = 30,609.14/x
3. Step 3: Cross multiply
   42,564.74x = 58,712.72 × 30,609.14
4. Step 4: Simplify right side
   42,564.74x = 1,797,145,713.22
5. Step 5: Solve for x
   x = 1,797,145,713.22/42,564.74
6. Step 6: Final answer
   x = 42,221.47