Finding the Fourth Proportional to 89,428.36, 134,155.42 and 27,103.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,428.36 : 134,155.42 = 27,103.72 : x
2. Step 2: Convert to fraction form
   89,428.36/134,155.42 = 27,103.72/x
3. Step 3: Cross multiply
   89,428.36x = 134,155.42 × 27,103.72
4. Step 4: Simplify right side
   89,428.36x = 3,636,110,940.16
5. Step 5: Solve for x
   x = 3,636,110,940.16/89,428.36
6. Step 6: Final answer
   x = 40,659.48