Finding the Fourth Proportional to 10,864.05, 14,979.70 and 10,076.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,864.05 : 14,979.70 = 10,076.73 : x
2. Step 2: Convert to fraction form
   10,864.05/14,979.70 = 10,076.73/x
3. Step 3: Cross multiply
   10,864.05x = 14,979.70 × 10,076.73
4. Step 4: Simplify right side
   10,864.05x = 150,946,392.38
5. Step 5: Solve for x
   x = 150,946,392.38/10,864.05
6. Step 6: Final answer
   x = 13,894.12