Finding the Fourth Proportional to 78,809.44, 108,714.72 and 53,282.20

Step by Step Solution

1. Step 1: Write the proportion equation
   78,809.44 : 108,714.72 = 53,282.20 : x
2. Step 2: Convert to fraction form
   78,809.44/108,714.72 = 53,282.20/x
3. Step 3: Cross multiply
   78,809.44x = 108,714.72 × 53,282.20
4. Step 4: Simplify right side
   78,809.44x = 5,792,559,453.98
5. Step 5: Solve for x
   x = 5,792,559,453.98/78,809.44
6. Step 6: Final answer
   x = 73,500.83