Finding the Fourth Proportional to 30,863.81, 42,591.88 and 17,434.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,863.81 : 42,591.88 = 17,434.42 : x
2. Step 2: Convert to fraction form
   30,863.81/42,591.88 = 17,434.42/x
3. Step 3: Cross multiply
   30,863.81x = 42,591.88 × 17,434.42
4. Step 4: Simplify right side
   30,863.81x = 742,564,724.51
5. Step 5: Solve for x
   x = 742,564,724.51/30,863.81
6. Step 6: Final answer
   x = 24,059.40