Finding the Fourth Proportional to 196,488.72, 271,154.39 and 107,064.72

Step by Step Solution

1. Step 1: Write the proportion equation
   196,488.72 : 271,154.39 = 107,064.72 : x
2. Step 2: Convert to fraction form
   196,488.72/271,154.39 = 107,064.72/x
3. Step 3: Cross multiply
   196,488.72x = 271,154.39 × 107,064.72
4. Step 4: Simplify right side
   196,488.72x = 29,031,068,306.80
5. Step 5: Solve for x
   x = 29,031,068,306.80/196,488.72
6. Step 6: Final answer
   x = 147,749.29