Finding the Fourth Proportional to 30,880.19, 42,613.55 and 17,451.15

Step by Step Solution

1. Step 1: Write the proportion equation
   30,880.19 : 42,613.55 = 17,451.15 : x
2. Step 2: Convert to fraction form
   30,880.19/42,613.55 = 17,451.15/x
3. Step 3: Cross multiply
   30,880.19x = 42,613.55 × 17,451.15
4. Step 4: Simplify right side
   30,880.19x = 743,655,496.71
5. Step 5: Solve for x
   x = 743,655,496.71/30,880.19
6. Step 6: Final answer
   x = 24,081.96