Finding the Fourth Proportional to 143,945.81, 215,475.83 and 93,918.18

Step by Step Solution

1. Step 1: Write the proportion equation
   143,945.81 : 215,475.83 = 93,918.18 : x
2. Step 2: Convert to fraction form
   143,945.81/215,475.83 = 93,918.18/x
3. Step 3: Cross multiply
   143,945.81x = 215,475.83 × 93,918.18
4. Step 4: Simplify right side
   143,945.81x = 20,237,098,198.48
5. Step 5: Solve for x
   x = 20,237,098,198.48/143,945.81
6. Step 6: Final answer
   x = 140,588.32