Finding the Fourth Proportional to 11,959.72, 17,942.78 and 10,652.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,959.72 : 17,942.78 = 10,652.42 : x
2. Step 2: Convert to fraction form
   11,959.72/17,942.78 = 10,652.42/x
3. Step 3: Cross multiply
   11,959.72x = 17,942.78 × 10,652.42
4. Step 4: Simplify right side
   11,959.72x = 191,134,100.02
5. Step 5: Solve for x
   x = 191,134,100.02/11,959.72
6. Step 6: Final answer
   x = 15,981.49