Finding the Fourth Proportional to 72,137.39, 108,244.76 and 30,046.55

Step by Step Solution

1. Step 1: Write the proportion equation
   72,137.39 : 108,244.76 = 30,046.55 : x
2. Step 2: Convert to fraction form
   72,137.39/108,244.76 = 30,046.55/x
3. Step 3: Cross multiply
   72,137.39x = 108,244.76 × 30,046.55
4. Step 4: Simplify right side
   72,137.39x = 3,252,380,902.12
5. Step 5: Solve for x
   x = 3,252,380,902.12/72,137.39
6. Step 6: Final answer
   x = 45,085.93