Finding the Fourth Proportional to 64,650.22, 89,196.53 and 39,148.43

Step by Step Solution

1. Step 1: Write the proportion equation
   64,650.22 : 89,196.53 = 39,148.43 : x
2. Step 2: Convert to fraction form
   64,650.22/89,196.53 = 39,148.43/x
3. Step 3: Cross multiply
   64,650.22x = 89,196.53 × 39,148.43
4. Step 4: Simplify right side
   64,650.22x = 3,491,903,469.22
5. Step 5: Solve for x
   x = 3,491,903,469.22/64,650.22
6. Step 6: Final answer
   x = 54,012.25