Finding the Fourth Proportional to 140,665.84, 194,111.58 and 76,991.56

Step by Step Solution

1. Step 1: Write the proportion equation
   140,665.84 : 194,111.58 = 76,991.56 : x
2. Step 2: Convert to fraction form
   140,665.84/194,111.58 = 76,991.56/x
3. Step 3: Cross multiply
   140,665.84x = 194,111.58 × 76,991.56
4. Step 4: Simplify right side
   140,665.84x = 14,944,953,358.26
5. Step 5: Solve for x
   x = 14,944,953,358.26/140,665.84
6. Step 6: Final answer
   x = 106,244.37