Finding the Fourth Proportional to 142,092.50, 196,158.60 and 88,394.96

Step by Step Solution

1. Step 1: Write the proportion equation
   142,092.50 : 196,158.60 = 88,394.96 : x
2. Step 2: Convert to fraction form
   142,092.50/196,158.60 = 88,394.96/x
3. Step 3: Cross multiply
   142,092.50x = 196,158.60 × 88,394.96
4. Step 4: Simplify right side
   142,092.50x = 17,339,430,619.86
5. Step 5: Solve for x
   x = 17,339,430,619.86/142,092.50
6. Step 6: Final answer
   x = 122,029.18