Finding the Fourth Proportional to 55,715.27, 76,886.42 and 30,221.15

Step by Step Solution

1. Step 1: Write the proportion equation
   55,715.27 : 76,886.42 = 30,221.15 : x
2. Step 2: Convert to fraction form
   55,715.27/76,886.42 = 30,221.15/x
3. Step 3: Cross multiply
   55,715.27x = 76,886.42 × 30,221.15
4. Step 4: Simplify right side
   55,715.27x = 2,323,595,928.73
5. Step 5: Solve for x
   x = 2,323,595,928.73/55,715.27
6. Step 6: Final answer
   x = 41,704.83