Finding the Fourth Proportional to 196,580.69, 271,279.94 and 111,697.76

Step by Step Solution

1. Step 1: Write the proportion equation
   196,580.69 : 271,279.94 = 111,697.76 : x
2. Step 2: Convert to fraction form
   196,580.69/271,279.94 = 111,697.76/x
3. Step 3: Cross multiply
   196,580.69x = 271,279.94 × 111,697.76
4. Step 4: Simplify right side
   196,580.69x = 30,301,359,716.05
5. Step 5: Solve for x
   x = 30,301,359,716.05/196,580.69
6. Step 6: Final answer
   x = 154,142.10