Finding the Fourth Proportional to 140,812.50, 194,321.37 and 77,150.58

Step by Step Solution

1. Step 1: Write the proportion equation
   140,812.50 : 194,321.37 = 77,150.58 : x
2. Step 2: Convert to fraction form
   140,812.50/194,321.37 = 77,150.58/x
3. Step 3: Cross multiply
   140,812.50x = 194,321.37 × 77,150.58
4. Step 4: Simplify right side
   140,812.50x = 14,992,006,401.89
5. Step 5: Solve for x
   x = 14,992,006,401.89/140,812.50
6. Step 6: Final answer
   x = 106,467.87