Finding the Fourth Proportional to 16,602.15, 22,910.69 and 9,048.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,602.15 : 22,910.69 = 9,048.57 : x
2. Step 2: Convert to fraction form
   16,602.15/22,910.69 = 9,048.57/x
3. Step 3: Cross multiply
   16,602.15x = 22,910.69 × 9,048.57
4. Step 4: Simplify right side
   16,602.15x = 207,309,016.39
5. Step 5: Solve for x
   x = 207,309,016.39/16,602.15
6. Step 6: Final answer
   x = 12,486.88