Finding the Fourth Proportional to 72,825.10, 109,280.09 and 30,702.61

Step by Step Solution

1. Step 1: Write the proportion equation
   72,825.10 : 109,280.09 = 30,702.61 : x
2. Step 2: Convert to fraction form
   72,825.10/109,280.09 = 30,702.61/x
3. Step 3: Cross multiply
   72,825.10x = 109,280.09 × 30,702.61
4. Step 4: Simplify right side
   72,825.10x = 3,355,183,984.03
5. Step 5: Solve for x
   x = 3,355,183,984.03/72,825.10
6. Step 6: Final answer
   x = 46,071.81