Finding the Fourth Proportional to 8,496.86, 12,749.45 and 3,820.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,496.86 : 12,749.45 = 3,820.16 : x
2. Step 2: Convert to fraction form
   8,496.86/12,749.45 = 3,820.16/x
3. Step 3: Cross multiply
   8,496.86x = 12,749.45 × 3,820.16
4. Step 4: Simplify right side
   8,496.86x = 48,704,980.34
5. Step 5: Solve for x
   x = 48,704,980.34/8,496.86
6. Step 6: Final answer
   x = 5,732.12