Finding the Fourth Proportional to 86,404.53, 129,620.43 and 30,243.27

Step by Step Solution

1. Step 1: Write the proportion equation
   86,404.53 : 129,620.43 = 30,243.27 : x
2. Step 2: Convert to fraction form
   86,404.53/129,620.43 = 30,243.27/x
3. Step 3: Cross multiply
   86,404.53x = 129,620.43 × 30,243.27
4. Step 4: Simplify right side
   86,404.53x = 3,920,145,662.01
5. Step 5: Solve for x
   x = 3,920,145,662.01/86,404.53
6. Step 6: Final answer
   x = 45,369.68