Finding the Fourth Proportional to 140,404.16, 193,769.28 and 79,993.76

Step by Step Solution

1. Step 1: Write the proportion equation
   140,404.16 : 193,769.28 = 79,993.76 : x
2. Step 2: Convert to fraction form
   140,404.16/193,769.28 = 79,993.76/x
3. Step 3: Cross multiply
   140,404.16x = 193,769.28 × 79,993.76
4. Step 4: Simplify right side
   140,404.16x = 15,500,333,279.69
5. Step 5: Solve for x
   x = 15,500,333,279.69/140,404.16
6. Step 6: Final answer
   x = 110,397.96