Finding the Fourth Proportional to 131,596.50, 197,415.27 and 42,829.05

Step by Step Solution

1. Step 1: Write the proportion equation
   131,596.50 : 197,415.27 = 42,829.05 : x
2. Step 2: Convert to fraction form
   131,596.50/197,415.27 = 42,829.05/x
3. Step 3: Cross multiply
   131,596.50x = 197,415.27 × 42,829.05
4. Step 4: Simplify right side
   131,596.50x = 8,455,108,469.59
5. Step 5: Solve for x
   x = 8,455,108,469.59/131,596.50
6. Step 6: Final answer
   x = 64,250.25