Finding the Fourth Proportional to 10,145.72, 15,219.50 and 2,750.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,145.72 : 15,219.50 = 2,750.22 : x
2. Step 2: Convert to fraction form
   10,145.72/15,219.50 = 2,750.22/x
3. Step 3: Cross multiply
   10,145.72x = 15,219.50 × 2,750.22
4. Step 4: Simplify right side
   10,145.72x = 41,856,959.54
5. Step 5: Solve for x
   x = 41,856,959.54/10,145.72
6. Step 6: Final answer
   x = 4,125.58