Finding the Fourth Proportional to 140,499.56, 193,850.34 and 83,890.28

Step by Step Solution

1. Step 1: Write the proportion equation
   140,499.56 : 193,850.34 = 83,890.28 : x
2. Step 2: Convert to fraction form
   140,499.56/193,850.34 = 83,890.28/x
3. Step 3: Cross multiply
   140,499.56x = 193,850.34 × 83,890.28
4. Step 4: Simplify right side
   140,499.56x = 16,262,159,300.70
5. Step 5: Solve for x
   x = 16,262,159,300.70/140,499.56
6. Step 6: Final answer
   x = 115,745.27