Finding the Fourth Proportional to 9,928.72, 14,890.62 and 3,354.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,928.72 : 14,890.62 = 3,354.76 : x
2. Step 2: Convert to fraction form
   9,928.72/14,890.62 = 3,354.76/x
3. Step 3: Cross multiply
   9,928.72x = 14,890.62 × 3,354.76
4. Step 4: Simplify right side
   9,928.72x = 49,954,456.35
5. Step 5: Solve for x
   x = 49,954,456.35/9,928.72
6. Step 6: Final answer
   x = 5,031.31