Finding the Fourth Proportional to 140,894.50, 194,454.30 and 87,196.82

Step by Step Solution

1. Step 1: Write the proportion equation
   140,894.50 : 194,454.30 = 87,196.82 : x
2. Step 2: Convert to fraction form
   140,894.50/194,454.30 = 87,196.82/x
3. Step 3: Cross multiply
   140,894.50x = 194,454.30 × 87,196.82
4. Step 4: Simplify right side
   140,894.50x = 16,955,796,595.33
5. Step 5: Solve for x
   x = 16,955,796,595.33/140,894.50
6. Step 6: Final answer
   x = 120,343.92