Finding the Fourth Proportional to 140,756.10, 194,234.67 and 77,090.10

Step by Step Solution

1. Step 1: Write the proportion equation
   140,756.10 : 194,234.67 = 77,090.10 : x
2. Step 2: Convert to fraction form
   140,756.10/194,234.67 = 77,090.10/x
3. Step 3: Cross multiply
   140,756.10x = 194,234.67 × 77,090.10
4. Step 4: Simplify right side
   140,756.10x = 14,973,570,133.77
5. Step 5: Solve for x
   x = 14,973,570,133.77/140,756.10
6. Step 6: Final answer
   x = 106,379.55