Finding the Fourth Proportional to 199,152.78, 274,705.22 and 118,520.10

Step by Step Solution

1. Step 1: Write the proportion equation
   199,152.78 : 274,705.22 = 118,520.10 : x
2. Step 2: Convert to fraction form
   199,152.78/274,705.22 = 118,520.10/x
3. Step 3: Cross multiply
   199,152.78x = 274,705.22 × 118,520.10
4. Step 4: Simplify right side
   199,152.78x = 32,558,090,144.92
5. Step 5: Solve for x
   x = 32,558,090,144.92/199,152.78
6. Step 6: Final answer
   x = 163,482.98