Finding the Fourth Proportional to 142,783.98, 214,186.59 and 42,936.18

Step by Step Solution

1. Step 1: Write the proportion equation
   142,783.98 : 214,186.59 = 42,936.18 : x
2. Step 2: Convert to fraction form
   142,783.98/214,186.59 = 42,936.18/x
3. Step 3: Cross multiply
   142,783.98x = 214,186.59 × 42,936.18
4. Step 4: Simplify right side
   142,783.98x = 9,196,353,981.83
5. Step 5: Solve for x
   x = 9,196,353,981.83/142,783.98
6. Step 6: Final answer
   x = 64,407.46