Finding the Fourth Proportional to 86,564.13, 129,839.71 and 30,404.73

Step by Step Solution

1. Step 1: Write the proportion equation
   86,564.13 : 129,839.71 = 30,404.73 : x
2. Step 2: Convert to fraction form
   86,564.13/129,839.71 = 30,404.73/x
3. Step 3: Cross multiply
   86,564.13x = 129,839.71 × 30,404.73
4. Step 4: Simplify right side
   86,564.13x = 3,947,741,249.82
5. Step 5: Solve for x
   x = 3,947,741,249.82/86,564.13
6. Step 6: Final answer
   x = 45,604.82