Finding the Fourth Proportional to 8,607.98, 11,867.61 and 7,733.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,607.98 : 11,867.61 = 7,733.18 : x
2. Step 2: Convert to fraction form
   8,607.98/11,867.61 = 7,733.18/x
3. Step 3: Cross multiply
   8,607.98x = 11,867.61 × 7,733.18
4. Step 4: Simplify right side
   8,607.98x = 91,774,364.30
5. Step 5: Solve for x
   x = 91,774,364.30/8,607.98
6. Step 6: Final answer
   x = 10,661.54