Finding the Fourth Proportional to 427,168.89, 640,752.53 and 174,567.96

Step by Step Solution

1. Step 1: Write the proportion equation
   427,168.89 : 640,752.53 = 174,567.96 : x
2. Step 2: Convert to fraction form
   427,168.89/640,752.53 = 174,567.96/x
3. Step 3: Cross multiply
   427,168.89x = 640,752.53 × 174,567.96
4. Step 4: Simplify right side
   427,168.89x = 111,854,861,154.10
5. Step 5: Solve for x
   x = 111,854,861,154.10/427,168.89
6. Step 6: Final answer
   x = 261,851.61