Finding the Fourth Proportional to 30,746.91, 42,430.88 and 17,318.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,746.91 : 42,430.88 = 17,318.42 : x
2. Step 2: Convert to fraction form
   30,746.91/42,430.88 = 17,318.42/x
3. Step 3: Cross multiply
   30,746.91x = 42,430.88 × 17,318.42
4. Step 4: Simplify right side
   30,746.91x = 734,835,502.06
5. Step 5: Solve for x
   x = 734,835,502.06/30,746.91
6. Step 6: Final answer
   x = 23,899.49