Finding the Fourth Proportional to 30,618.32, 42,250.98 and 17,007.13

Step by Step Solution

1. Step 1: Write the proportion equation
   30,618.32 : 42,250.98 = 17,007.13 : x
2. Step 2: Convert to fraction form
   30,618.32/42,250.98 = 17,007.13/x
3. Step 3: Cross multiply
   30,618.32x = 42,250.98 × 17,007.13
4. Step 4: Simplify right side
   30,618.32x = 718,568,026.08
5. Step 5: Solve for x
   x = 718,568,026.08/30,618.32
6. Step 6: Final answer
   x = 23,468.56