Finding the Fourth Proportional to 140,971.98, 194,516.46 and 80,534.28

Step by Step Solution

1. Step 1: Write the proportion equation
   140,971.98 : 194,516.46 = 80,534.28 : x
2. Step 2: Convert to fraction form
   140,971.98/194,516.46 = 80,534.28/x
3. Step 3: Cross multiply
   140,971.98x = 194,516.46 × 80,534.28
4. Step 4: Simplify right side
   140,971.98x = 15,665,243,054.25
5. Step 5: Solve for x
   x = 15,665,243,054.25/140,971.98
6. Step 6: Final answer
   x = 111,123.10