Finding the Fourth Proportional to 55,725.39, 76,900.59 and 30,231.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,725.39 : 76,900.59 = 30,231.72 : x
2. Step 2: Convert to fraction form
   55,725.39/76,900.59 = 30,231.72/x
3. Step 3: Cross multiply
   55,725.39x = 76,900.59 × 30,231.72
4. Step 4: Simplify right side
   55,725.39x = 2,324,837,104.71
5. Step 5: Solve for x
   x = 2,324,837,104.71/55,725.39
6. Step 6: Final answer
   x = 41,719.53