Finding the Fourth Proportional to 81,016.56, 121,544.42 and 30,416.04

Step by Step Solution

1. Step 1: Write the proportion equation
   81,016.56 : 121,544.42 = 30,416.04 : x
2. Step 2: Convert to fraction form
   81,016.56/121,544.42 = 30,416.04/x
3. Step 3: Cross multiply
   81,016.56x = 121,544.42 × 30,416.04
4. Step 4: Simplify right side
   81,016.56x = 3,696,899,788.42
5. Step 5: Solve for x
   x = 3,696,899,788.42/81,016.56
6. Step 6: Final answer
   x = 45,631.41