Finding the Fourth Proportional to 30,895.91, 42,636.66 and 16,748.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,895.91 : 42,636.66 = 16,748.72 : x
2. Step 2: Convert to fraction form
   30,895.91/42,636.66 = 16,748.72/x
3. Step 3: Cross multiply
   30,895.91x = 42,636.66 × 16,748.72
4. Step 4: Simplify right side
   30,895.91x = 714,109,480.08
5. Step 5: Solve for x
   x = 714,109,480.08/30,895.91
6. Step 6: Final answer
   x = 23,113.40