Finding the Fourth Proportional to 464,978.34, 697,540.41 and 198,740.25

Step by Step Solution

1. Step 1: Write the proportion equation
   464,978.34 : 697,540.41 = 198,740.25 : x
2. Step 2: Convert to fraction form
   464,978.34/697,540.41 = 198,740.25/x
3. Step 3: Cross multiply
   464,978.34x = 697,540.41 × 198,740.25
4. Step 4: Simplify right side
   464,978.34x = 138,629,355,468.50
5. Step 5: Solve for x
   x = 138,629,355,468.50/464,978.34
6. Step 6: Final answer
   x = 298,141.53