Finding the Fourth Proportional to 72,389.51, 108,547.23 and 30,258.09

Step by Step Solution

1. Step 1: Write the proportion equation
   72,389.51 : 108,547.23 = 30,258.09 : x
2. Step 2: Convert to fraction form
   72,389.51/108,547.23 = 30,258.09/x
3. Step 3: Cross multiply
   72,389.51x = 108,547.23 × 30,258.09
4. Step 4: Simplify right side
   72,389.51x = 3,284,431,854.59
5. Step 5: Solve for x
   x = 3,284,431,854.59/72,389.51
6. Step 6: Final answer
   x = 45,371.65