Finding the Fourth Proportional to 9,986.49, 14,966.69 and 5,053.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,986.49 : 14,966.69 = 5,053.46 : x
2. Step 2: Convert to fraction form
   9,986.49/14,966.69 = 5,053.46/x
3. Step 3: Cross multiply
   9,986.49x = 14,966.69 × 5,053.46
4. Step 4: Simplify right side
   9,986.49x = 75,633,469.15
5. Step 5: Solve for x
   x = 75,633,469.15/9,986.49
6. Step 6: Final answer
   x = 7,573.58