Finding the Fourth Proportional to 140,496.21, 193,825.97 and 92,109.76

Step by Step Solution

1. Step 1: Write the proportion equation
   140,496.21 : 193,825.97 = 92,109.76 : x
2. Step 2: Convert to fraction form
   140,496.21/193,825.97 = 92,109.76/x
3. Step 3: Cross multiply
   140,496.21x = 193,825.97 × 92,109.76
4. Step 4: Simplify right side
   140,496.21x = 17,853,262,978.77
5. Step 5: Solve for x
   x = 17,853,262,978.77/140,496.21
6. Step 6: Final answer
   x = 127,072.92