Finding the Fourth Proportional to 140,124.90, 193,321.83 and 107,869.38

Step by Step Solution

1. Step 1: Write the proportion equation
   140,124.90 : 193,321.83 = 107,869.38 : x
2. Step 2: Convert to fraction form
   140,124.90/193,321.83 = 107,869.38/x
3. Step 3: Cross multiply
   140,124.90x = 193,321.83 × 107,869.38
4. Step 4: Simplify right side
   140,124.90x = 20,853,505,942.57
5. Step 5: Solve for x
   x = 20,853,505,942.57/140,124.90
6. Step 6: Final answer
   x = 148,820.84