Finding the Fourth Proportional to 142,868.27, 214,302.39 and 48,090.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,868.27 : 214,302.39 = 48,090.50 : x
2. Step 2: Convert to fraction form
   142,868.27/214,302.39 = 48,090.50/x
3. Step 3: Cross multiply
   142,868.27x = 214,302.39 × 48,090.50
4. Step 4: Simplify right side
   142,868.27x = 10,305,909,086.30
5. Step 5: Solve for x
   x = 10,305,909,086.30/142,868.27
6. Step 6: Final answer
   x = 72,135.74