Finding the Fourth Proportional to 30,738.99, 42,419.37 and 17,311.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,738.99 : 42,419.37 = 17,311.56 : x
2. Step 2: Convert to fraction form
   30,738.99/42,419.37 = 17,311.56/x
3. Step 3: Cross multiply
   30,738.99x = 42,419.37 × 17,311.56
4. Step 4: Simplify right side
   30,738.99x = 734,345,468.92
5. Step 5: Solve for x
   x = 734,345,468.92/30,738.99
6. Step 6: Final answer
   x = 23,889.71