Finding the Fourth Proportional to 342,099.97, 472,096.78 and 191,196.97

Step by Step Solution

1. Step 1: Write the proportion equation
   342,099.97 : 472,096.78 = 191,196.97 : x
2. Step 2: Convert to fraction form
   342,099.97/472,096.78 = 191,196.97/x
3. Step 3: Cross multiply
   342,099.97x = 472,096.78 × 191,196.97
4. Step 4: Simplify right side
   342,099.97x = 90,263,473,994.89
5. Step 5: Solve for x
   x = 90,263,473,994.89/342,099.97
6. Step 6: Final answer
   x = 263,851.16