Finding the Fourth Proportional to 12,134.64, 18,200.72 and 3,814.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,134.64 : 18,200.72 = 3,814.72 : x
2. Step 2: Convert to fraction form
   12,134.64/18,200.72 = 3,814.72/x
3. Step 3: Cross multiply
   12,134.64x = 18,200.72 × 3,814.72
4. Step 4: Simplify right side
   12,134.64x = 69,430,650.60
5. Step 5: Solve for x
   x = 69,430,650.60/12,134.64
6. Step 6: Final answer
   x = 5,721.69