Finding the Fourth Proportional to 72,968.69, 109,398.33 and 30,898.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,968.69 : 109,398.33 = 30,898.10 : x
2. Step 2: Convert to fraction form
   72,968.69/109,398.33 = 30,898.10/x
3. Step 3: Cross multiply
   72,968.69x = 109,398.33 × 30,898.10
4. Step 4: Simplify right side
   72,968.69x = 3,380,199,993.18
5. Step 5: Solve for x
   x = 3,380,199,993.18/72,968.69
6. Step 6: Final answer
   x = 46,323.98