Finding the Fourth Proportional to 16,581.81, 22,890.72 and 10,616.94

Step by Step Solution

1. Step 1: Write the proportion equation
   16,581.81 : 22,890.72 = 10,616.94 : x
2. Step 2: Convert to fraction form
   16,581.81/22,890.72 = 10,616.94/x
3. Step 3: Cross multiply
   16,581.81x = 22,890.72 × 10,616.94
4. Step 4: Simplify right side
   16,581.81x = 243,029,233.26
5. Step 5: Solve for x
   x = 243,029,233.26/16,581.81
6. Step 6: Final answer
   x = 14,656.38