Finding the Fourth Proportional to 10,479.31, 15,704.65 and 5,792.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,479.31 : 15,704.65 = 5,792.38 : x
2. Step 2: Convert to fraction form
   10,479.31/15,704.65 = 5,792.38/x
3. Step 3: Cross multiply
   10,479.31x = 15,704.65 × 5,792.38
4. Step 4: Simplify right side
   10,479.31x = 90,967,300.57
5. Step 5: Solve for x
   x = 90,967,300.57/10,479.31
6. Step 6: Final answer
   x = 8,680.66