Finding the Fourth Proportional to 131,820.78, 197,740.39 and 52,935

Step by Step Solution

1. Step 1: Write the proportion equation
   131,820.78 : 197,740.39 = 52,935 : x
2. Step 2: Convert to fraction form
   131,820.78/197,740.39 = 52,935/x
3. Step 3: Cross multiply
   131,820.78x = 197,740.39 × 52,935
4. Step 4: Simplify right side
   131,820.78x = 10,467,387,279.98
5. Step 5: Solve for x
   x = 10,467,387,279.98/131,820.78
6. Step 6: Final answer
   x = 79,406.20