Finding the Fourth Proportional to 354,196.97, 488,792.18 and 193,052.15

Step by Step Solution

1. Step 1: Write the proportion equation
   354,196.97 : 488,792.18 = 193,052.15 : x
2. Step 2: Convert to fraction form
   354,196.97/488,792.18 = 193,052.15/x
3. Step 3: Cross multiply
   354,196.97x = 488,792.18 × 193,052.15
4. Step 4: Simplify right side
   354,196.97x = 94,362,379,290.86
5. Step 5: Solve for x
   x = 94,362,379,290.86/354,196.97
6. Step 6: Final answer
   x = 266,412.16