Finding the Fourth Proportional to 140,499.42, 193,830.35 and 92,112.95

Step by Step Solution

1. Step 1: Write the proportion equation
   140,499.42 : 193,830.35 = 92,112.95 : x
2. Step 2: Convert to fraction form
   140,499.42/193,830.35 = 92,112.95/x
3. Step 3: Cross multiply
   140,499.42x = 193,830.35 × 92,112.95
4. Step 4: Simplify right side
   140,499.42x = 17,854,283,908.32
5. Step 5: Solve for x
   x = 17,854,283,908.32/140,499.42
6. Step 6: Final answer
   x = 127,077.28