Finding the Fourth Proportional to 89,498.39, 134,240.54 and 39,580.11

Step by Step Solution

1. Step 1: Write the proportion equation
   89,498.39 : 134,240.54 = 39,580.11 : x
2. Step 2: Convert to fraction form
   89,498.39/134,240.54 = 39,580.11/x
3. Step 3: Cross multiply
   89,498.39x = 134,240.54 × 39,580.11
4. Step 4: Simplify right side
   89,498.39x = 5,313,255,141.76
5. Step 5: Solve for x
   x = 5,313,255,141.76/89,498.39
6. Step 6: Final answer
   x = 59,367.05