Finding the Fourth Proportional to 143,156.49, 214,769.61 and 43,311.06

Step by Step Solution

1. Step 1: Write the proportion equation
   143,156.49 : 214,769.61 = 43,311.06 : x
2. Step 2: Convert to fraction form
   143,156.49/214,769.61 = 43,311.06/x
3. Step 3: Cross multiply
   143,156.49x = 214,769.61 × 43,311.06
4. Step 4: Simplify right side
   143,156.49x = 9,301,899,464.89
5. Step 5: Solve for x
   x = 9,301,899,464.89/143,156.49
6. Step 6: Final answer
   x = 64,977.14