Finding the Fourth Proportional to 9,968.75, 13,761.86 and 7,725.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,968.75 : 13,761.86 = 7,725.59 : x
2. Step 2: Convert to fraction form
   9,968.75/13,761.86 = 7,725.59/x
3. Step 3: Cross multiply
   9,968.75x = 13,761.86 × 7,725.59
4. Step 4: Simplify right side
   9,968.75x = 106,318,488.00
5. Step 5: Solve for x
   x = 106,318,488.00/9,968.75
6. Step 6: Final answer
   x = 10,665.18