Finding the Fourth Proportional to 140,892.27, 194,436.32 and 77,230.05

Step by Step Solution

1. Step 1: Write the proportion equation
   140,892.27 : 194,436.32 = 77,230.05 : x
2. Step 2: Convert to fraction form
   140,892.27/194,436.32 = 77,230.05/x
3. Step 3: Cross multiply
   140,892.27x = 194,436.32 × 77,230.05
4. Step 4: Simplify right side
   140,892.27x = 15,016,326,329.27
5. Step 5: Solve for x
   x = 15,016,326,329.27/140,892.27
6. Step 6: Final answer
   x = 106,580.20