Finding the Fourth Proportional to 16,653.56, 22,981.97 and 9,100.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,653.56 : 22,981.97 = 9,100.05 : x
2. Step 2: Convert to fraction form
   16,653.56/22,981.97 = 9,100.05/x
3. Step 3: Cross multiply
   16,653.56x = 22,981.97 × 9,100.05
4. Step 4: Simplify right side
   16,653.56x = 209,137,030.60
5. Step 5: Solve for x
   x = 209,137,030.60/16,653.56
6. Step 6: Final answer
   x = 12,558.10