Finding the Fourth Proportional to 113,885.58, 170,679.72 and 82,401.68

Step by Step Solution

1. Step 1: Write the proportion equation
   113,885.58 : 170,679.72 = 82,401.68 : x
2. Step 2: Convert to fraction form
   113,885.58/170,679.72 = 82,401.68/x
3. Step 3: Cross multiply
   113,885.58x = 170,679.72 × 82,401.68
4. Step 4: Simplify right side
   113,885.58x = 14,064,295,669.93
5. Step 5: Solve for x
   x = 14,064,295,669.93/113,885.58
6. Step 6: Final answer
   x = 123,494.96