Finding the Fourth Proportional to 143,321.28, 215,007.78 and 59,035.44

Step by Step Solution

1. Step 1: Write the proportion equation
   143,321.28 : 215,007.78 = 59,035.44 : x
2. Step 2: Convert to fraction form
   143,321.28/215,007.78 = 59,035.44/x
3. Step 3: Cross multiply
   143,321.28x = 215,007.78 × 59,035.44
4. Step 4: Simplify right side
   143,321.28x = 12,693,078,895.72
5. Step 5: Solve for x
   x = 12,693,078,895.72/143,321.28
6. Step 6: Final answer
   x = 88,563.81