Finding the Fourth Proportional to 72,085.75, 108,151.76 and 34,648.54

Step by Step Solution

1. Step 1: Write the proportion equation
   72,085.75 : 108,151.76 = 34,648.54 : x
2. Step 2: Convert to fraction form
   72,085.75/108,151.76 = 34,648.54/x
3. Step 3: Cross multiply
   72,085.75x = 108,151.76 × 34,648.54
4. Step 4: Simplify right side
   72,085.75x = 3,747,300,409.19
5. Step 5: Solve for x
   x = 3,747,300,409.19/72,085.75
6. Step 6: Final answer
   x = 51,983.93