Finding the Fourth Proportional to 140,401.25, 193,750.86 and 76,739.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,401.25 : 193,750.86 = 76,739.50 : x
2. Step 2: Convert to fraction form
   140,401.25/193,750.86 = 76,739.50/x
3. Step 3: Cross multiply
   140,401.25x = 193,750.86 × 76,739.50
4. Step 4: Simplify right side
   140,401.25x = 14,868,343,636.59
5. Step 5: Solve for x
   x = 14,868,343,636.59/140,401.25
6. Step 6: Final answer
   x = 105,898.94