Finding the Fourth Proportional to 16,366.56, 22,587.96 and 9,991.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,366.56 : 22,587.96 = 9,991.82 : x
2. Step 2: Convert to fraction form
   16,366.56/22,587.96 = 9,991.82/x
3. Step 3: Cross multiply
   16,366.56x = 22,587.96 × 9,991.82
4. Step 4: Simplify right side
   16,366.56x = 225,694,830.49
5. Step 5: Solve for x
   x = 225,694,830.49/16,366.56
6. Step 6: Final answer
   x = 13,790.00