Finding the Fourth Proportional to 13,951.98, 19,253.72 and 7,664.36

Step by Step Solution

1. Step 1: Write the proportion equation
   13,951.98 : 19,253.72 = 7,664.36 : x
2. Step 2: Convert to fraction form
   13,951.98/19,253.72 = 7,664.36/x
3. Step 3: Cross multiply
   13,951.98x = 19,253.72 × 7,664.36
4. Step 4: Simplify right side
   13,951.98x = 147,567,306.83
5. Step 5: Solve for x
   x = 147,567,306.83/13,951.98
6. Step 6: Final answer
   x = 10,576.80