Finding the Fourth Proportional to 140,434.49, 193,799.59 and 76,772.27

Step by Step Solution

1. Step 1: Write the proportion equation
   140,434.49 : 193,799.59 = 76,772.27 : x
2. Step 2: Convert to fraction form
   140,434.49/193,799.59 = 76,772.27/x
3. Step 3: Cross multiply
   140,434.49x = 193,799.59 × 76,772.27
4. Step 4: Simplify right side
   140,434.49x = 14,878,434,741.94
5. Step 5: Solve for x
   x = 14,878,434,741.94/140,434.49
6. Step 6: Final answer
   x = 105,945.73