Finding the Fourth Proportional to 353,705.43, 488,123.72 and 192,563.22

Step by Step Solution

1. Step 1: Write the proportion equation
   353,705.43 : 488,123.72 = 192,563.22 : x
2. Step 2: Convert to fraction form
   353,705.43/488,123.72 = 192,563.22/x
3. Step 3: Cross multiply
   353,705.43x = 488,123.72 × 192,563.22
4. Step 4: Simplify right side
   353,705.43x = 93,994,676,871.34
5. Step 5: Solve for x
   x = 93,994,676,871.34/353,705.43
6. Step 6: Final answer
   x = 265,742.81