Finding the Fourth Proportional to 142,046.34, 196,022.07 and 78,382.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,046.34 : 196,022.07 = 78,382.50 : x
2. Step 2: Convert to fraction form
   142,046.34/196,022.07 = 78,382.50/x
3. Step 3: Cross multiply
   142,046.34x = 196,022.07 × 78,382.50
4. Step 4: Simplify right side
   142,046.34x = 15,364,699,901.78
5. Step 5: Solve for x
   x = 15,364,699,901.78/142,046.34
6. Step 6: Final answer
   x = 108,166.81