Finding the Fourth Proportional to 142,744.78, 214,116.54 and 42,904.54

Step by Step Solution

1. Step 1: Write the proportion equation
   142,744.78 : 214,116.54 = 42,904.54 : x
2. Step 2: Convert to fraction form
   142,744.78/214,116.54 = 42,904.54/x
3. Step 3: Cross multiply
   142,744.78x = 214,116.54 × 42,904.54
4. Step 4: Simplify right side
   142,744.78x = 9,186,571,655.09
5. Step 5: Solve for x
   x = 9,186,571,655.09/142,744.78
6. Step 6: Final answer
   x = 64,356.62