Finding the Fourth Proportional to 315,152.78, 472,665.38 and 115,404.96

Step by Step Solution

1. Step 1: Write the proportion equation
   315,152.78 : 472,665.38 = 115,404.96 : x
2. Step 2: Convert to fraction form
   315,152.78/472,665.38 = 115,404.96/x
3. Step 3: Cross multiply
   315,152.78x = 472,665.38 × 115,404.96
4. Step 4: Simplify right side
   315,152.78x = 54,547,927,355.53
5. Step 5: Solve for x
   x = 54,547,927,355.53/315,152.78
6. Step 6: Final answer
   x = 173,084.08