Finding the Fourth Proportional to 129,061.40, 178,054.95 and 95,150.50

Step by Step Solution

1. Step 1: Write the proportion equation
   129,061.40 : 178,054.95 = 95,150.50 : x
2. Step 2: Convert to fraction form
   129,061.40/178,054.95 = 95,150.50/x
3. Step 3: Cross multiply
   129,061.40x = 178,054.95 × 95,150.50
4. Step 4: Simplify right side
   129,061.40x = 16,942,017,074.84
5. Step 5: Solve for x
   x = 16,942,017,074.84/129,061.40
6. Step 6: Final answer
   x = 131,270.98