Finding the Fourth Proportional to 16,602.89, 22,920.35 and 10,945.85

Step by Step Solution

1. Step 1: Write the proportion equation
   16,602.89 : 22,920.35 = 10,945.85 : x
2. Step 2: Convert to fraction form
   16,602.89/22,920.35 = 10,945.85/x
3. Step 3: Cross multiply
   16,602.89x = 22,920.35 × 10,945.85
4. Step 4: Simplify right side
   16,602.89x = 250,882,543.72
5. Step 5: Solve for x
   x = 250,882,543.72/16,602.89
6. Step 6: Final answer
   x = 15,110.78