Finding the Fourth Proportional to 82,395.42, 113,502.31 and 70,256.39

Step by Step Solution

1. Step 1: Write the proportion equation
   82,395.42 : 113,502.31 = 70,256.39 : x
2. Step 2: Convert to fraction form
   82,395.42/113,502.31 = 70,256.39/x
3. Step 3: Cross multiply
   82,395.42x = 113,502.31 × 70,256.39
4. Step 4: Simplify right side
   82,395.42x = 7,974,263,166.98
5. Step 5: Solve for x
   x = 7,974,263,166.98/82,395.42
6. Step 6: Final answer
   x = 96,780.42