Finding the Fourth Proportional to 142,118.62, 196,111.90 and 80,848.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,118.62 : 196,111.90 = 80,848.50 : x
2. Step 2: Convert to fraction form
   142,118.62/196,111.90 = 80,848.50/x
3. Step 3: Cross multiply
   142,118.62x = 196,111.90 × 80,848.50
4. Step 4: Simplify right side
   142,118.62x = 15,855,353,967.49
5. Step 5: Solve for x
   x = 15,855,353,967.49/142,118.62
6. Step 6: Final answer
   x = 111,564.23