Finding the Fourth Proportional to 7,787.98, 10,747.25 and 4,251.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,787.98 : 10,747.25 = 4,251.25 : x
2. Step 2: Convert to fraction form
   7,787.98/10,747.25 = 4,251.25/x
3. Step 3: Cross multiply
   7,787.98x = 10,747.25 × 4,251.25
4. Step 4: Simplify right side
   7,787.98x = 45,689,225.31
5. Step 5: Solve for x
   x = 45,689,225.31/7,787.98
6. Step 6: Final answer
   x = 5,866.63