Finding the Fourth Proportional to 81,648.39, 122,510.25 and 37,288.74

Step by Step Solution

1. Step 1: Write the proportion equation
   81,648.39 : 122,510.25 = 37,288.74 : x
2. Step 2: Convert to fraction form
   81,648.39/122,510.25 = 37,288.74/x
3. Step 3: Cross multiply
   81,648.39x = 122,510.25 × 37,288.74
4. Step 4: Simplify right side
   81,648.39x = 4,568,252,859.59
5. Step 5: Solve for x
   x = 4,568,252,859.59/81,648.39
6. Step 6: Final answer
   x = 55,950.31