Finding the Fourth Proportional to 142,109.32, 196,174.62 and 93,739.78

Step by Step Solution

1. Step 1: Write the proportion equation
   142,109.32 : 196,174.62 = 93,739.78 : x
2. Step 2: Convert to fraction form
   142,109.32/196,174.62 = 93,739.78/x
3. Step 3: Cross multiply
   142,109.32x = 196,174.62 × 93,739.78
4. Step 4: Simplify right side
   142,109.32x = 18,389,365,720.38
5. Step 5: Solve for x
   x = 18,389,365,720.38/142,109.32
6. Step 6: Final answer
   x = 129,402.95