Finding the Fourth Proportional to 308,805.56, 463,245.69 and 109,085.07

Step by Step Solution

1. Step 1: Write the proportion equation
   308,805.56 : 463,245.69 = 109,085.07 : x
2. Step 2: Convert to fraction form
   308,805.56/463,245.69 = 109,085.07/x
3. Step 3: Cross multiply
   308,805.56x = 463,245.69 × 109,085.07
4. Step 4: Simplify right side
   308,805.56x = 50,533,188,520.85
5. Step 5: Solve for x
   x = 50,533,188,520.85/308,805.56
6. Step 6: Final answer
   x = 163,640.80