Finding the Fourth Proportional to 140,882.72, 194,419.50 and 77,221.76

Step by Step Solution

1. Step 1: Write the proportion equation
   140,882.72 : 194,419.50 = 77,221.76 : x
2. Step 2: Convert to fraction form
   140,882.72/194,419.50 = 77,221.76/x
3. Step 3: Cross multiply
   140,882.72x = 194,419.50 × 77,221.76
4. Step 4: Simplify right side
   140,882.72x = 15,013,415,968.32
5. Step 5: Solve for x
   x = 15,013,415,968.32/140,882.72
6. Step 6: Final answer
   x = 106,566.77