Finding the Fourth Proportional to 131,770.72, 197,692.98 and 52,940.30

Step by Step Solution

1. Step 1: Write the proportion equation
   131,770.72 : 197,692.98 = 52,940.30 : x
2. Step 2: Convert to fraction form
   131,770.72/197,692.98 = 52,940.30/x
3. Step 3: Cross multiply
   131,770.72x = 197,692.98 × 52,940.30
4. Step 4: Simplify right side
   131,770.72x = 10,465,925,404.39
5. Step 5: Solve for x
   x = 10,465,925,404.39/131,770.72
6. Step 6: Final answer
   x = 79,425.28