Finding the Fourth Proportional to 199,203.30, 274,900.55 and 109,779.30

Step by Step Solution

1. Step 1: Write the proportion equation
   199,203.30 : 274,900.55 = 109,779.30 : x
2. Step 2: Convert to fraction form
   199,203.30/274,900.55 = 109,779.30/x
3. Step 3: Cross multiply
   199,203.30x = 274,900.55 × 109,779.30
4. Step 4: Simplify right side
   199,203.30x = 30,178,389,399.72
5. Step 5: Solve for x
   x = 30,178,389,399.72/199,203.30
6. Step 6: Final answer
   x = 151,495.43