Finding the Fourth Proportional to 11,164.38, 16,813.43 and 10,167.93

Step by Step Solution

1. Step 1: Write the proportion equation
   11,164.38 : 16,813.43 = 10,167.93 : x
2. Step 2: Convert to fraction form
   11,164.38/16,813.43 = 10,167.93/x
3. Step 3: Cross multiply
   11,164.38x = 16,813.43 × 10,167.93
4. Step 4: Simplify right side
   11,164.38x = 170,957,728.46
5. Step 5: Solve for x
   x = 170,957,728.46/11,164.38
6. Step 6: Final answer
   x = 15,312.78