Finding the Fourth Proportional to 140,051.30, 193,287.14 and 79,631

Step by Step Solution

1. Step 1: Write the proportion equation
   140,051.30 : 193,287.14 = 79,631 : x
2. Step 2: Convert to fraction form
   140,051.30/193,287.14 = 79,631/x
3. Step 3: Cross multiply
   140,051.30x = 193,287.14 × 79,631
4. Step 4: Simplify right side
   140,051.30x = 15,391,648,245.34
5. Step 5: Solve for x
   x = 15,391,648,245.34/140,051.30
6. Step 6: Final answer
   x = 109,900.07