Finding the Fourth Proportional to 30,868.02, 42,597.27 and 17,438.31

Step by Step Solution

1. Step 1: Write the proportion equation
   30,868.02 : 42,597.27 = 17,438.31 : x
2. Step 2: Convert to fraction form
   30,868.02/42,597.27 = 17,438.31/x
3. Step 3: Cross multiply
   30,868.02x = 42,597.27 × 17,438.31
4. Step 4: Simplify right side
   30,868.02x = 742,824,399.41
5. Step 5: Solve for x
   x = 742,824,399.41/30,868.02
6. Step 6: Final answer
   x = 24,064.53