Finding the Fourth Proportional to 30,885.81, 42,628.73 and 17,457.63

Step by Step Solution

1. Step 1: Write the proportion equation
   30,885.81 : 42,628.73 = 17,457.63 : x
2. Step 2: Convert to fraction form
   30,885.81/42,628.73 = 17,457.63/x
3. Step 3: Cross multiply
   30,885.81x = 42,628.73 × 17,457.63
4. Step 4: Simplify right side
   30,885.81x = 744,196,508.42
5. Step 5: Solve for x
   x = 744,196,508.42/30,885.81
6. Step 6: Final answer
   x = 24,095.09