Finding the Fourth Proportional to 82,570.96, 113,982.72 and 55,749.76

Step by Step Solution

1. Step 1: Write the proportion equation
   82,570.96 : 113,982.72 = 55,749.76 : x
2. Step 2: Convert to fraction form
   82,570.96/113,982.72 = 55,749.76/x
3. Step 3: Cross multiply
   82,570.96x = 113,982.72 × 55,749.76
4. Step 4: Simplify right side
   82,570.96x = 6,354,509,284.15
5. Step 5: Solve for x
   x = 6,354,509,284.15/82,570.96
6. Step 6: Final answer
   x = 76,958.16