Finding the Fourth Proportional to 16,091.60, 22,206.35 and 9,018.07

Step by Step Solution

1. Step 1: Write the proportion equation
   16,091.60 : 22,206.35 = 9,018.07 : x
2. Step 2: Convert to fraction form
   16,091.60/22,206.35 = 9,018.07/x
3. Step 3: Cross multiply
   16,091.60x = 22,206.35 × 9,018.07
4. Step 4: Simplify right side
   16,091.60x = 200,258,385.77
5. Step 5: Solve for x
   x = 200,258,385.77/16,091.60
6. Step 6: Final answer
   x = 12,444.91