Finding the Fourth Proportional to 14,064.10, 21,087.96 and 5,299.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,064.10 : 21,087.96 = 5,299.72 : x
2. Step 2: Convert to fraction form
   14,064.10/21,087.96 = 5,299.72/x
3. Step 3: Cross multiply
   14,064.10x = 21,087.96 × 5,299.72
4. Step 4: Simplify right side
   14,064.10x = 111,760,283.37
5. Step 5: Solve for x
   x = 111,760,283.37/14,064.10
6. Step 6: Final answer
   x = 7,946.49