Finding the Fourth Proportional to 10,573.86, 15,849.32 and 6,878.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,573.86 : 15,849.32 = 6,878.72 : x
2. Step 2: Convert to fraction form
   10,573.86/15,849.32 = 6,878.72/x
3. Step 3: Cross multiply
   10,573.86x = 15,849.32 × 6,878.72
4. Step 4: Simplify right side
   10,573.86x = 109,023,034.47
5. Step 5: Solve for x
   x = 109,023,034.47/10,573.86
6. Step 6: Final answer
   x = 10,310.62