Finding the Fourth Proportional to 143,816.31, 215,821.67 and 50,322.87

Step by Step Solution

1. Step 1: Write the proportion equation
   143,816.31 : 215,821.67 = 50,322.87 : x
2. Step 2: Convert to fraction form
   143,816.31/215,821.67 = 50,322.87/x
3. Step 3: Cross multiply
   143,816.31x = 215,821.67 × 50,322.87
4. Step 4: Simplify right side
   143,816.31x = 10,860,765,842.59
5. Step 5: Solve for x
   x = 10,860,765,842.59/143,816.31
6. Step 6: Final answer
   x = 75,518.32