Finding the Fourth Proportional to 72,845.94, 109,287.69 and 39,557.46

Step by Step Solution

1. Step 1: Write the proportion equation
   72,845.94 : 109,287.69 = 39,557.46 : x
2. Step 2: Convert to fraction form
   72,845.94/109,287.69 = 39,557.46/x
3. Step 3: Cross multiply
   72,845.94x = 109,287.69 × 39,557.46
4. Step 4: Simplify right side
   72,845.94x = 4,323,143,425.67
5. Step 5: Solve for x
   x = 4,323,143,425.67/72,845.94
6. Step 6: Final answer
   x = 59,346.39