Finding the Fourth Proportional to 86,391.72, 129,598.56 and 33,794.46

Step by Step Solution

1. Step 1: Write the proportion equation
   86,391.72 : 129,598.56 = 33,794.46 : x
2. Step 2: Convert to fraction form
   86,391.72/129,598.56 = 33,794.46/x
3. Step 3: Cross multiply
   86,391.72x = 129,598.56 × 33,794.46
4. Step 4: Simplify right side
   86,391.72x = 4,379,713,351.98
5. Step 5: Solve for x
   x = 4,379,713,351.98/86,391.72
6. Step 6: Final answer
   x = 50,695.99