Finding the Fourth Proportional to 140,659.75, 194,103 and 76,985.23

Step by Step Solution

1. Step 1: Write the proportion equation
   140,659.75 : 194,103 = 76,985.23 : x
2. Step 2: Convert to fraction form
   140,659.75/194,103 = 76,985.23/x
3. Step 3: Cross multiply
   140,659.75x = 194,103 × 76,985.23
4. Step 4: Simplify right side
   140,659.75x = 14,943,064,098.69
5. Step 5: Solve for x
   x = 14,943,064,098.69/140,659.75
6. Step 6: Final answer
   x = 106,235.54