Finding the Fourth Proportional to 143,369.77, 197,862.89 and 78,850.37

Step by Step Solution

1. Step 1: Write the proportion equation
   143,369.77 : 197,862.89 = 78,850.37 : x
2. Step 2: Convert to fraction form
   143,369.77/197,862.89 = 78,850.37/x
3. Step 3: Cross multiply
   143,369.77x = 197,862.89 × 78,850.37
4. Step 4: Simplify right side
   143,369.77x = 15,601,562,085.77
5. Step 5: Solve for x
   x = 15,601,562,085.77/143,369.77
6. Step 6: Final answer
   x = 108,820.44