Finding the Fourth Proportional to 10,340.25, 15,499.41 and 5,076.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,340.25 : 15,499.41 = 5,076.87 : x
2. Step 2: Convert to fraction form
   10,340.25/15,499.41 = 5,076.87/x
3. Step 3: Cross multiply
   10,340.25x = 15,499.41 × 5,076.87
4. Step 4: Simplify right side
   10,340.25x = 78,688,489.65
5. Step 5: Solve for x
   x = 78,688,489.65/10,340.25
6. Step 6: Final answer
   x = 7,609.92