Finding the Fourth Proportional to 143,623.59, 215,533.83 and 50,129.34

Step by Step Solution

1. Step 1: Write the proportion equation
   143,623.59 : 215,533.83 = 50,129.34 : x
2. Step 2: Convert to fraction form
   143,623.59/215,533.83 = 50,129.34/x
3. Step 3: Cross multiply
   143,623.59x = 215,533.83 × 50,129.34
4. Step 4: Simplify right side
   143,623.59x = 10,804,568,645.57
5. Step 5: Solve for x
   x = 10,804,568,645.57/143,623.59
6. Step 6: Final answer
   x = 75,228.37