Finding the Fourth Proportional to 73,111.96, 109,645.61 and 30,991.25

Step by Step Solution

1. Step 1: Write the proportion equation
   73,111.96 : 109,645.61 = 30,991.25 : x
2. Step 2: Convert to fraction form
   73,111.96/109,645.61 = 30,991.25/x
3. Step 3: Cross multiply
   73,111.96x = 109,645.61 × 30,991.25
4. Step 4: Simplify right side
   73,111.96x = 3,398,054,510.91
5. Step 5: Solve for x
   x = 3,398,054,510.91/73,111.96
6. Step 6: Final answer
   x = 46,477.41