Finding the Fourth Proportional to 9,849.72, 14,785.12 and 5,470.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,849.72 : 14,785.12 = 5,470.86 : x
2. Step 2: Convert to fraction form
   9,849.72/14,785.12 = 5,470.86/x
3. Step 3: Cross multiply
   9,849.72x = 14,785.12 × 5,470.86
4. Step 4: Simplify right side
   9,849.72x = 80,887,321.60
5. Step 5: Solve for x
   x = 80,887,321.60/9,849.72
6. Step 6: Final answer
   x = 8,212.14