Finding the Fourth Proportional to 11,683.43, 17,530.61 and 5,108.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,683.43 : 17,530.61 = 5,108.76 : x
2. Step 2: Convert to fraction form
   11,683.43/17,530.61 = 5,108.76/x
3. Step 3: Cross multiply
   11,683.43x = 17,530.61 × 5,108.76
4. Step 4: Simplify right side
   11,683.43x = 89,559,679.14
5. Step 5: Solve for x
   x = 89,559,679.14/11,683.43
6. Step 6: Final answer
   x = 7,665.53