Finding the Fourth Proportional to 140,591.42, 194,019.30 and 76,929.20

Step by Step Solution

1. Step 1: Write the proportion equation
   140,591.42 : 194,019.30 = 76,929.20 : x
2. Step 2: Convert to fraction form
   140,591.42/194,019.30 = 76,929.20/x
3. Step 3: Cross multiply
   140,591.42x = 194,019.30 × 76,929.20
4. Step 4: Simplify right side
   140,591.42x = 14,925,749,533.56
5. Step 5: Solve for x
   x = 14,925,749,533.56/140,591.42
6. Step 6: Final answer
   x = 106,164.01