Finding the Fourth Proportional to 194,354.78, 268,208.42 and 109,499.18

Step by Step Solution

1. Step 1: Write the proportion equation
   194,354.78 : 268,208.42 = 109,499.18 : x
2. Step 2: Convert to fraction form
   194,354.78/268,208.42 = 109,499.18/x
3. Step 3: Cross multiply
   194,354.78x = 268,208.42 × 109,499.18
4. Step 4: Simplify right side
   194,354.78x = 29,368,602,059.10
5. Step 5: Solve for x
   x = 29,368,602,059.10/194,354.78
6. Step 6: Final answer
   x = 151,108.21