Finding the Fourth Proportional to 142,142.01, 196,154.64 and 78,480.27

Step by Step Solution

1. Step 1: Write the proportion equation
   142,142.01 : 196,154.64 = 78,480.27 : x
2. Step 2: Convert to fraction form
   142,142.01/196,154.64 = 78,480.27/x
3. Step 3: Cross multiply
   142,142.01x = 196,154.64 × 78,480.27
4. Step 4: Simplify right side
   142,142.01x = 15,394,269,108.95
5. Step 5: Solve for x
   x = 15,394,269,108.95/142,142.01
6. Step 6: Final answer
   x = 108,302.04