Finding the Fourth Proportional to 11,423.52, 15,768.43 and 7,850.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,423.52 : 15,768.43 = 7,850.31 : x
2. Step 2: Convert to fraction form
   11,423.52/15,768.43 = 7,850.31/x
3. Step 3: Cross multiply
   11,423.52x = 15,768.43 × 7,850.31
4. Step 4: Simplify right side
   11,423.52x = 123,786,999.80
5. Step 5: Solve for x
   x = 123,786,999.80/11,423.52
6. Step 6: Final answer
   x = 10,836.15