Finding the Fourth Proportional to 10,861.38, 16,294.56 and 4,621.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,861.38 : 16,294.56 = 4,621.62 : x
2. Step 2: Convert to fraction form
   10,861.38/16,294.56 = 4,621.62/x
3. Step 3: Cross multiply
   10,861.38x = 16,294.56 × 4,621.62
4. Step 4: Simplify right side
   10,861.38x = 75,307,264.39
5. Step 5: Solve for x
   x = 75,307,264.39/10,861.38
6. Step 6: Final answer
   x = 6,933.49