Finding the Fourth Proportional to 142,636.50, 196,873.80 and 88,983.92

Step by Step Solution

1. Step 1: Write the proportion equation
   142,636.50 : 196,873.80 = 88,983.92 : x
2. Step 2: Convert to fraction form
   142,636.50/196,873.80 = 88,983.92/x
3. Step 3: Cross multiply
   142,636.50x = 196,873.80 × 88,983.92
4. Step 4: Simplify right side
   142,636.50x = 17,518,602,469.30
5. Step 5: Solve for x
   x = 17,518,602,469.30/142,636.50
6. Step 6: Final answer
   x = 122,819.91