Finding the Fourth Proportional to 19,317.24, 28,978.16 and 6,834.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,317.24 : 28,978.16 = 6,834.72 : x
2. Step 2: Convert to fraction form
   19,317.24/28,978.16 = 6,834.72/x
3. Step 3: Cross multiply
   19,317.24x = 28,978.16 × 6,834.72
4. Step 4: Simplify right side
   19,317.24x = 198,057,609.72
5. Step 5: Solve for x
   x = 198,057,609.72/19,317.24
6. Step 6: Final answer
   x = 10,252.89