Finding the Fourth Proportional to 361,942.83, 542,918.42 and 109,225.50

Step by Step Solution

1. Step 1: Write the proportion equation
   361,942.83 : 542,918.42 = 109,225.50 : x
2. Step 2: Convert to fraction form
   361,942.83/542,918.42 = 109,225.50/x
3. Step 3: Cross multiply
   361,942.83x = 542,918.42 × 109,225.50
4. Step 4: Simplify right side
   361,942.83x = 59,300,535,337.58
5. Step 5: Solve for x
   x = 59,300,535,337.58/361,942.83
6. Step 6: Final answer
   x = 163,839.51