Finding the Fourth Proportional to 102,401.48, 141,196.98 and 83,228.78

Step by Step Solution

1. Step 1: Write the proportion equation
   102,401.48 : 141,196.98 = 83,228.78 : x
2. Step 2: Convert to fraction form
   102,401.48/141,196.98 = 83,228.78/x
3. Step 3: Cross multiply
   102,401.48x = 141,196.98 × 83,228.78
4. Step 4: Simplify right side
   102,401.48x = 11,751,652,385.08
5. Step 5: Solve for x
   x = 11,751,652,385.08/102,401.48
6. Step 6: Final answer
   x = 114,760.57