Finding the Fourth Proportional to 16,377.80, 22,601.78 and 10,091.40

Step by Step Solution

1. Step 1: Write the proportion equation
   16,377.80 : 22,601.78 = 10,091.40 : x
2. Step 2: Convert to fraction form
   16,377.80/22,601.78 = 10,091.40/x
3. Step 3: Cross multiply
   16,377.80x = 22,601.78 × 10,091.40
4. Step 4: Simplify right side
   16,377.80x = 228,083,602.69
5. Step 5: Solve for x
   x = 228,083,602.69/16,377.80
6. Step 6: Final answer
   x = 13,926.39