Finding the Fourth Proportional to 140,528.52, 193,928.58 and 80,109

Step by Step Solution

1. Step 1: Write the proportion equation
   140,528.52 : 193,928.58 = 80,109 : x
2. Step 2: Convert to fraction form
   140,528.52/193,928.58 = 80,109/x
3. Step 3: Cross multiply
   140,528.52x = 193,928.58 × 80,109
4. Step 4: Simplify right side
   140,528.52x = 15,535,424,615.22
5. Step 5: Solve for x
   x = 15,535,424,615.22/140,528.52
6. Step 6: Final answer
   x = 110,549.98