Finding the Fourth Proportional to 9,355.75, 12,898.52 and 7,756.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,355.75 : 12,898.52 = 7,756.36 : x
2. Step 2: Convert to fraction form
   9,355.75/12,898.52 = 7,756.36/x
3. Step 3: Cross multiply
   9,355.75x = 12,898.52 × 7,756.36
4. Step 4: Simplify right side
   9,355.75x = 100,045,500.09
5. Step 5: Solve for x
   x = 100,045,500.09/9,355.75
6. Step 6: Final answer
   x = 10,693.48