Finding the Fourth Proportional to 142,956.72, 214,457 and 43,103.68

Step by Step Solution

1. Step 1: Write the proportion equation
   142,956.72 : 214,457 = 43,103.68 : x
2. Step 2: Convert to fraction form
   142,956.72/214,457 = 43,103.68/x
3. Step 3: Cross multiply
   142,956.72x = 214,457 × 43,103.68
4. Step 4: Simplify right side
   142,956.72x = 9,243,885,901.76
5. Step 5: Solve for x
   x = 9,243,885,901.76/142,956.72
6. Step 6: Final answer
   x = 64,662.13