Finding the Fourth Proportional to 10,440.86, 15,660.59 and 4,895.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,440.86 : 15,660.59 = 4,895.42 : x
2. Step 2: Convert to fraction form
   10,440.86/15,660.59 = 4,895.42/x
3. Step 3: Cross multiply
   10,440.86x = 15,660.59 × 4,895.42
4. Step 4: Simplify right side
   10,440.86x = 76,665,062.72
5. Step 5: Solve for x
   x = 76,665,062.72/10,440.86
6. Step 6: Final answer
   x = 7,342.80