Finding the Fourth Proportional to 10,499.16, 15,758.46 and 5,308.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,499.16 : 15,758.46 = 5,308.68 : x
2. Step 2: Convert to fraction form
   10,499.16/15,758.46 = 5,308.68/x
3. Step 3: Cross multiply
   10,499.16x = 15,758.46 × 5,308.68
4. Step 4: Simplify right side
   10,499.16x = 83,656,621.43
5. Step 5: Solve for x
   x = 83,656,621.43/10,499.16
6. Step 6: Final answer
   x = 7,967.93