Finding the Fourth Proportional to 140,111.04, 193,357.52 and 79,690.40

Step by Step Solution

1. Step 1: Write the proportion equation
   140,111.04 : 193,357.52 = 79,690.40 : x
2. Step 2: Convert to fraction form
   140,111.04/193,357.52 = 79,690.40/x
3. Step 3: Cross multiply
   140,111.04x = 193,357.52 × 79,690.40
4. Step 4: Simplify right side
   140,111.04x = 15,408,736,746.57
5. Step 5: Solve for x
   x = 15,408,736,746.57/140,111.04
6. Step 6: Final answer
   x = 109,975.18