Finding the Fourth Proportional to 30,868.56, 42,598.29 and 17,439.79

Step by Step Solution

1. Step 1: Write the proportion equation
   30,868.56 : 42,598.29 = 17,439.79 : x
2. Step 2: Convert to fraction form
   30,868.56/42,598.29 = 17,439.79/x
3. Step 3: Cross multiply
   30,868.56x = 42,598.29 × 17,439.79
4. Step 4: Simplify right side
   30,868.56x = 742,905,231.96
5. Step 5: Solve for x
   x = 742,905,231.96/30,868.56
6. Step 6: Final answer
   x = 24,066.73