Finding the Fourth Proportional to 140,118.32, 193,357.43 and 79,680.58

Step by Step Solution

1. Step 1: Write the proportion equation
   140,118.32 : 193,357.43 = 79,680.58 : x
2. Step 2: Convert to fraction form
   140,118.32/193,357.43 = 79,680.58/x
3. Step 3: Cross multiply
   140,118.32x = 193,357.43 × 79,680.58
4. Step 4: Simplify right side
   140,118.32x = 15,406,831,586.72
5. Step 5: Solve for x
   x = 15,406,831,586.72/140,118.32
6. Step 6: Final answer
   x = 109,955.87