Finding the Fourth Proportional to 140,551.78, 194,103.14 and 89,588.54

Step by Step Solution

1. Step 1: Write the proportion equation
   140,551.78 : 194,103.14 = 89,588.54 : x
2. Step 2: Convert to fraction form
   140,551.78/194,103.14 = 89,588.54/x
3. Step 3: Cross multiply
   140,551.78x = 194,103.14 × 89,588.54
4. Step 4: Simplify right side
   140,551.78x = 17,389,416,922.02
5. Step 5: Solve for x
   x = 17,389,416,922.02/140,551.78
6. Step 6: Final answer
   x = 123,722.50