Finding the Fourth Proportional to 143,351.83, 197,830.61 and 78,825.98

Step by Step Solution

1. Step 1: Write the proportion equation
   143,351.83 : 197,830.61 = 78,825.98 : x
2. Step 2: Convert to fraction form
   143,351.83/197,830.61 = 78,825.98/x
3. Step 3: Cross multiply
   143,351.83x = 197,830.61 × 78,825.98
4. Step 4: Simplify right side
   143,351.83x = 15,594,191,313.12
5. Step 5: Solve for x
   x = 15,594,191,313.12/143,351.83
6. Step 6: Final answer
   x = 108,782.64