Finding the Fourth Proportional to 30,457.76, 42,040.61 and 17,713.92

Step by Step Solution

1. Step 1: Write the proportion equation
   30,457.76 : 42,040.61 = 17,713.92 : x
2. Step 2: Convert to fraction form
   30,457.76/42,040.61 = 17,713.92/x
3. Step 3: Cross multiply
   30,457.76x = 42,040.61 × 17,713.92
4. Step 4: Simplify right side
   30,457.76x = 744,704,002.29
5. Step 5: Solve for x
   x = 744,704,002.29/30,457.76
6. Step 6: Final answer
   x = 24,450.39