Finding the Fourth Proportional to 140,722.45, 194,196.68 and 76,191.37

Step by Step Solution

1. Step 1: Write the proportion equation
   140,722.45 : 194,196.68 = 76,191.37 : x
2. Step 2: Convert to fraction form
   140,722.45/194,196.68 = 76,191.37/x
3. Step 3: Cross multiply
   140,722.45x = 194,196.68 × 76,191.37
4. Step 4: Simplify right side
   140,722.45x = 14,796,111,098.65
5. Step 5: Solve for x
   x = 14,796,111,098.65/140,722.45
6. Step 6: Final answer
   x = 105,143.93