Finding the Fourth Proportional to 8,503.77, 11,719.83 and 7,087.68

Step by Step Solution

1. Step 1: Write the proportion equation
   8,503.77 : 11,719.83 = 7,087.68 : x
2. Step 2: Convert to fraction form
   8,503.77/11,719.83 = 7,087.68/x
3. Step 3: Cross multiply
   8,503.77x = 11,719.83 × 7,087.68
4. Step 4: Simplify right side
   8,503.77x = 83,066,404.69
5. Step 5: Solve for x
   x = 83,066,404.69/8,503.77
6. Step 6: Final answer
   x = 9,768.19