Finding the Fourth Proportional to 10,438.74, 15,618.86 and 7,324.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,438.74 : 15,618.86 = 7,324.82 : x
2. Step 2: Convert to fraction form
   10,438.74/15,618.86 = 7,324.82/x
3. Step 3: Cross multiply
   10,438.74x = 15,618.86 × 7,324.82
4. Step 4: Simplify right side
   10,438.74x = 114,405,309.43
5. Step 5: Solve for x
   x = 114,405,309.43/10,438.74
6. Step 6: Final answer
   x = 10,959.69