Finding the Fourth Proportional to 30,910.64, 42,656.69 and 16,763.48

Step by Step Solution

1. Step 1: Write the proportion equation
   30,910.64 : 42,656.69 = 16,763.48 : x
2. Step 2: Convert to fraction form
   30,910.64/42,656.69 = 16,763.48/x
3. Step 3: Cross multiply
   30,910.64x = 42,656.69 × 16,763.48
4. Step 4: Simplify right side
   30,910.64x = 715,074,558.27
5. Step 5: Solve for x
   x = 715,074,558.27/30,910.64
6. Step 6: Final answer
   x = 23,133.61