Finding the Fourth Proportional to 143,225.37, 197,644.31 and 79,567.05

Step by Step Solution

1. Step 1: Write the proportion equation
   143,225.37 : 197,644.31 = 79,567.05 : x
2. Step 2: Convert to fraction form
   143,225.37/197,644.31 = 79,567.05/x
3. Step 3: Cross multiply
   143,225.37x = 197,644.31 × 79,567.05
4. Step 4: Simplify right side
   143,225.37x = 15,725,974,298.15
5. Step 5: Solve for x
   x = 15,725,974,298.15/143,225.37
6. Step 6: Final answer
   x = 109,798.80