Finding the Fourth Proportional to 10,362.15, 15,433.31 and 10,311.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,362.15 : 15,433.31 = 10,311.93 : x
2. Step 2: Convert to fraction form
   10,362.15/15,433.31 = 10,311.93/x
3. Step 3: Cross multiply
   10,362.15x = 15,433.31 × 10,311.93
4. Step 4: Simplify right side
   10,362.15x = 159,147,238.17
5. Step 5: Solve for x
   x = 159,147,238.17/10,362.15
6. Step 6: Final answer
   x = 15,358.52