Finding the Fourth Proportional to 140,142.98, 193,401.42 and 76,484.88

Step by Step Solution

1. Step 1: Write the proportion equation
   140,142.98 : 193,401.42 = 76,484.88 : x
2. Step 2: Convert to fraction form
   140,142.98/193,401.42 = 76,484.88/x
3. Step 3: Cross multiply
   140,142.98x = 193,401.42 × 76,484.88
4. Step 4: Simplify right side
   140,142.98x = 14,792,284,400.53
5. Step 5: Solve for x
   x = 14,792,284,400.53/140,142.98
6. Step 6: Final answer
   x = 105,551.38