Finding the Fourth Proportional to 143,315.33, 214,977.92 and 64,429.83

Step by Step Solution

1. Step 1: Write the proportion equation
   143,315.33 : 214,977.92 = 64,429.83 : x
2. Step 2: Convert to fraction form
   143,315.33/214,977.92 = 64,429.83/x
3. Step 3: Cross multiply
   143,315.33x = 214,977.92 × 64,429.83
4. Step 4: Simplify right side
   143,315.33x = 13,850,990,517.20
5. Step 5: Solve for x
   x = 13,850,990,517.20/143,315.33
6. Step 6: Final answer
   x = 96,646.96