Finding the Fourth Proportional to 30,628.72, 45,931.74 and 10,901.98

Step by Step Solution

1. Step 1: Write the proportion equation
   30,628.72 : 45,931.74 = 10,901.98 : x
2. Step 2: Convert to fraction form
   30,628.72/45,931.74 = 10,901.98/x
3. Step 3: Cross multiply
   30,628.72x = 45,931.74 × 10,901.98
4. Step 4: Simplify right side
   30,628.72x = 500,746,910.85
5. Step 5: Solve for x
   x = 500,746,910.85/30,628.72
6. Step 6: Final answer
   x = 16,348.93