Finding the Fourth Proportional to 199,123.30, 274,790.14 and 109,699.30

Step by Step Solution

1. Step 1: Write the proportion equation
   199,123.30 : 274,790.14 = 109,699.30 : x
2. Step 2: Convert to fraction form
   199,123.30/274,790.14 = 109,699.30/x
3. Step 3: Cross multiply
   199,123.30x = 274,790.14 × 109,699.30
4. Step 4: Simplify right side
   199,123.30x = 30,144,286,004.90
5. Step 5: Solve for x
   x = 30,144,286,004.90/199,123.30
6. Step 6: Final answer
   x = 151,385.03