Finding the Fourth Proportional to 48,128.73, 72,183.37 and 13,068.69

Step by Step Solution

1. Step 1: Write the proportion equation
   48,128.73 : 72,183.37 = 13,068.69 : x
2. Step 2: Convert to fraction form
   48,128.73/72,183.37 = 13,068.69/x
3. Step 3: Cross multiply
   48,128.73x = 72,183.37 × 13,068.69
4. Step 4: Simplify right side
   48,128.73x = 943,342,085.69
5. Step 5: Solve for x
   x = 943,342,085.69/48,128.73
6. Step 6: Final answer
   x = 19,600.39