Finding the Fourth Proportional to 143,860.77, 198,528.71 and 83,467.37

Step by Step Solution

1. Step 1: Write the proportion equation
   143,860.77 : 198,528.71 = 83,467.37 : x
2. Step 2: Convert to fraction form
   143,860.77/198,528.71 = 83,467.37/x
3. Step 3: Cross multiply
   143,860.77x = 198,528.71 × 83,467.37
4. Step 4: Simplify right side
   143,860.77x = 16,570,667,883.21
5. Step 5: Solve for x
   x = 16,570,667,883.21/143,860.77
6. Step 6: Final answer
   x = 115,185.45