Finding the Fourth Proportional to 140,711.78, 194,182.56 and 76,181.69

Step by Step Solution

1. Step 1: Write the proportion equation
   140,711.78 : 194,182.56 = 76,181.69 : x
2. Step 2: Convert to fraction form
   140,711.78/194,182.56 = 76,181.69/x
3. Step 3: Cross multiply
   140,711.78x = 194,182.56 × 76,181.69
4. Step 4: Simplify right side
   140,711.78x = 14,793,154,618.41
5. Step 5: Solve for x
   x = 14,793,154,618.41/140,711.78
6. Step 6: Final answer
   x = 105,130.89