Finding the Fourth Proportional to 11,915.35, 17,861.41 and 5,673.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,915.35 : 17,861.41 = 5,673.69 : x
2. Step 2: Convert to fraction form
   11,915.35/17,861.41 = 5,673.69/x
3. Step 3: Cross multiply
   11,915.35x = 17,861.41 × 5,673.69
4. Step 4: Simplify right side
   11,915.35x = 101,340,110.40
5. Step 5: Solve for x
   x = 101,340,110.40/11,915.35
6. Step 6: Final answer
   x = 8,505.00