Finding the Fourth Proportional to 30,923.56, 42,658.86 and 19,574.02

Step by Step Solution

1. Step 1: Write the proportion equation
   30,923.56 : 42,658.86 = 19,574.02 : x
2. Step 2: Convert to fraction form
   30,923.56/42,658.86 = 19,574.02/x
3. Step 3: Cross multiply
   30,923.56x = 42,658.86 × 19,574.02
4. Step 4: Simplify right side
   30,923.56x = 835,005,378.82
5. Step 5: Solve for x
   x = 835,005,378.82/30,923.56
6. Step 6: Final answer
   x = 27,002.24