Finding the Fourth Proportional to 10,156.78, 15,243.37 and 5,227.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,156.78 : 15,243.37 = 5,227.83 : x
2. Step 2: Convert to fraction form
   10,156.78/15,243.37 = 5,227.83/x
3. Step 3: Cross multiply
   10,156.78x = 15,243.37 × 5,227.83
4. Step 4: Simplify right side
   10,156.78x = 79,689,733.92
5. Step 5: Solve for x
   x = 79,689,733.92/10,156.78
6. Step 6: Final answer
   x = 7,845.96