Finding the Fourth Proportional to 14,299.36, 21,451.89 and 4,939.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,299.36 : 21,451.89 = 4,939.72 : x
2. Step 2: Convert to fraction form
   14,299.36/21,451.89 = 4,939.72/x
3. Step 3: Cross multiply
   14,299.36x = 21,451.89 × 4,939.72
4. Step 4: Simplify right side
   14,299.36x = 105,966,222.81
5. Step 5: Solve for x
   x = 105,966,222.81/14,299.36
6. Step 6: Final answer
   x = 7,410.56