Finding the Fourth Proportional to 10,917.84, 15,066.72 and 7,736.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,917.84 : 15,066.72 = 7,736.72 : x
2. Step 2: Convert to fraction form
   10,917.84/15,066.72 = 7,736.72/x
3. Step 3: Cross multiply
   10,917.84x = 15,066.72 × 7,736.72
4. Step 4: Simplify right side
   10,917.84x = 116,566,993.96
5. Step 5: Solve for x
   x = 116,566,993.96/10,917.84
6. Step 6: Final answer
   x = 10,676.75