Finding the Fourth Proportional to 140,328.42, 193,402.71 and 106,255.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,328.42 : 193,402.71 = 106,255.50 : x
2. Step 2: Convert to fraction form
   140,328.42/193,402.71 = 106,255.50/x
3. Step 3: Cross multiply
   140,328.42x = 193,402.71 × 106,255.50
4. Step 4: Simplify right side
   140,328.42x = 20,550,101,652.41
5. Step 5: Solve for x
   x = 20,550,101,652.41/140,328.42
6. Step 6: Final answer
   x = 146,442.91