Finding the Fourth Proportional to 140,894.25, 194,453.96 and 87,196.56

Step by Step Solution

1. Step 1: Write the proportion equation
   140,894.25 : 194,453.96 = 87,196.56 : x
2. Step 2: Convert to fraction form
   140,894.25/194,453.96 = 87,196.56/x
3. Step 3: Cross multiply
   140,894.25x = 194,453.96 × 87,196.56
4. Step 4: Simplify right side
   140,894.25x = 16,955,715,954.39
5. Step 5: Solve for x
   x = 16,955,715,954.39/140,894.25
6. Step 6: Final answer
   x = 120,343.56