Finding the Fourth Proportional to 9,921.85, 14,881.86 and 3,348.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,921.85 : 14,881.86 = 3,348.09 : x
2. Step 2: Convert to fraction form
   9,921.85/14,881.86 = 3,348.09/x
3. Step 3: Cross multiply
   9,921.85x = 14,881.86 × 3,348.09
4. Step 4: Simplify right side
   9,921.85x = 49,825,715.50
5. Step 5: Solve for x
   x = 49,825,715.50/9,921.85
6. Step 6: Final answer
   x = 5,021.82