Finding the Fourth Proportional to 143,996.87, 216,091.71 and 59,757.11

Step by Step Solution

1. Step 1: Write the proportion equation
   143,996.87 : 216,091.71 = 59,757.11 : x
2. Step 2: Convert to fraction form
   143,996.87/216,091.71 = 59,757.11/x
3. Step 3: Cross multiply
   143,996.87x = 216,091.71 × 59,757.11
4. Step 4: Simplify right side
   143,996.87x = 12,913,015,004.10
5. Step 5: Solve for x
   x = 12,913,015,004.10/143,996.87
6. Step 6: Final answer
   x = 89,675.67