Finding the Fourth Proportional to 82,528.89, 113,942.79 and 56,730.34

Step by Step Solution

1. Step 1: Write the proportion equation
   82,528.89 : 113,942.79 = 56,730.34 : x
2. Step 2: Convert to fraction form
   82,528.89/113,942.79 = 56,730.34/x
3. Step 3: Cross multiply
   82,528.89x = 113,942.79 × 56,730.34
4. Step 4: Simplify right side
   82,528.89x = 6,464,013,217.25
5. Step 5: Solve for x
   x = 6,464,013,217.25/82,528.89
6. Step 6: Final answer
   x = 78,324.25