Finding the Fourth Proportional to 140,723.34, 194,189.31 and 77,061.90

Step by Step Solution

1. Step 1: Write the proportion equation
   140,723.34 : 194,189.31 = 77,061.90 : x
2. Step 2: Convert to fraction form
   140,723.34/194,189.31 = 77,061.90/x
3. Step 3: Cross multiply
   140,723.34x = 194,189.31 × 77,061.90
4. Step 4: Simplify right side
   140,723.34x = 14,964,597,188.29
5. Step 5: Solve for x
   x = 14,964,597,188.29/140,723.34
6. Step 6: Final answer
   x = 106,340.55