Finding the Fourth Proportional to 143,423.87, 215,161.52 and 59,137.16

Step by Step Solution

1. Step 1: Write the proportion equation
   143,423.87 : 215,161.52 = 59,137.16 : x
2. Step 2: Convert to fraction form
   143,423.87/215,161.52 = 59,137.16/x
3. Step 3: Cross multiply
   143,423.87x = 215,161.52 × 59,137.16
4. Step 4: Simplify right side
   143,423.87x = 12,724,039,862.59
5. Step 5: Solve for x
   x = 12,724,039,862.59/143,423.87
6. Step 6: Final answer
   x = 88,716.34