Finding the Fourth Proportional to 315,264.83, 434,940.48 and 194,196.15

Step by Step Solution

1. Step 1: Write the proportion equation
   315,264.83 : 434,940.48 = 194,196.15 : x
2. Step 2: Convert to fraction form
   315,264.83/434,940.48 = 194,196.15/x
3. Step 3: Cross multiply
   315,264.83x = 434,940.48 × 194,196.15
4. Step 4: Simplify right side
   315,264.83x = 84,463,766,695.15
5. Step 5: Solve for x
   x = 84,463,766,695.15/315,264.83
6. Step 6: Final answer
   x = 267,913.70