Finding the Fourth Proportional to 140,884.56, 194,355.72 and 81,234

Step by Step Solution

1. Step 1: Write the proportion equation
   140,884.56 : 194,355.72 = 81,234 : x
2. Step 2: Convert to fraction form
   140,884.56/194,355.72 = 81,234/x
3. Step 3: Cross multiply
   140,884.56x = 194,355.72 × 81,234
4. Step 4: Simplify right side
   140,884.56x = 15,788,292,558.48
5. Step 5: Solve for x
   x = 15,788,292,558.48/140,884.56
6. Step 6: Final answer
   x = 112,065.46