Finding the Fourth Proportional to 140,111.37, 193,357.95 and 79,690.71

Step by Step Solution

1. Step 1: Write the proportion equation
   140,111.37 : 193,357.95 = 79,690.71 : x
2. Step 2: Convert to fraction form
   140,111.37/193,357.95 = 79,690.71/x
3. Step 3: Cross multiply
   140,111.37x = 193,357.95 × 79,690.71
4. Step 4: Simplify right side
   140,111.37x = 15,408,831,836.25
5. Step 5: Solve for x
   x = 15,408,831,836.25/140,111.37
6. Step 6: Final answer
   x = 109,975.60