Finding the Fourth Proportional to 9,921.48, 14,884.49 and 4,300.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,921.48 : 14,884.49 = 4,300.09 : x
2. Step 2: Convert to fraction form
   9,921.48/14,884.49 = 4,300.09/x
3. Step 3: Cross multiply
   9,921.48x = 14,884.49 × 4,300.09
4. Step 4: Simplify right side
   9,921.48x = 64,004,646.60
5. Step 5: Solve for x
   x = 64,004,646.60/9,921.48
6. Step 6: Final answer
   x = 6,451.12