Finding the Fourth Proportional to 80,802.09, 121,153.59 and 30,828.60

Step by Step Solution

1. Step 1: Write the proportion equation
   80,802.09 : 121,153.59 = 30,828.60 : x
2. Step 2: Convert to fraction form
   80,802.09/121,153.59 = 30,828.60/x
3. Step 3: Cross multiply
   80,802.09x = 121,153.59 × 30,828.60
4. Step 4: Simplify right side
   80,802.09x = 3,734,995,564.67
5. Step 5: Solve for x
   x = 3,734,995,564.67/80,802.09
6. Step 6: Final answer
   x = 46,224.00