Finding the Fourth Proportional to 196,502.34, 271,158.66 and 111,603

Step by Step Solution

1. Step 1: Write the proportion equation
   196,502.34 : 271,158.66 = 111,603 : x
2. Step 2: Convert to fraction form
   196,502.34/271,158.66 = 111,603/x
3. Step 3: Cross multiply
   196,502.34x = 271,158.66 × 111,603
4. Step 4: Simplify right side
   196,502.34x = 30,262,119,931.98
5. Step 5: Solve for x
   x = 30,262,119,931.98/196,502.34
6. Step 6: Final answer
   x = 154,003.87