Finding the Fourth Proportional to 142,363, 196,443.88 and 78,692.14

Step by Step Solution

1. Step 1: Write the proportion equation
   142,363 : 196,443.88 = 78,692.14 : x
2. Step 2: Convert to fraction form
   142,363/196,443.88 = 78,692.14/x
3. Step 3: Cross multiply
   142,363x = 196,443.88 × 78,692.14
4. Step 4: Simplify right side
   142,363x = 15,458,589,307.10
5. Step 5: Solve for x
   x = 15,458,589,307.10/142,363
6. Step 6: Final answer
   x = 108,585.72