Finding the Fourth Proportional to 30,742.32, 42,423.96 and 17,313.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,742.32 : 42,423.96 = 17,313.72 : x
2. Step 2: Convert to fraction form
   30,742.32/42,423.96 = 17,313.72/x
3. Step 3: Cross multiply
   30,742.32x = 42,423.96 × 17,313.72
4. Step 4: Simplify right side
   30,742.32x = 734,516,564.73
5. Step 5: Solve for x
   x = 734,516,564.73/30,742.32
6. Step 6: Final answer
   x = 23,892.68