Finding the Fourth Proportional to 199,783.54, 275,696.67 and 109,139.88

Step by Step Solution

1. Step 1: Write the proportion equation
   199,783.54 : 275,696.67 = 109,139.88 : x
2. Step 2: Convert to fraction form
   199,783.54/275,696.67 = 109,139.88/x
3. Step 3: Cross multiply
   199,783.54x = 275,696.67 × 109,139.88
4. Step 4: Simplify right side
   199,783.54x = 30,089,501,480.20
5. Step 5: Solve for x
   x = 30,089,501,480.20/199,783.54
6. Step 6: Final answer
   x = 150,610.51