Finding the Fourth Proportional to 116,488.96, 160,455.36 and 82,438.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,488.96 : 160,455.36 = 82,438.72 : x
2. Step 2: Convert to fraction form
   116,488.96/160,455.36 = 82,438.72/x
3. Step 3: Cross multiply
   116,488.96x = 160,455.36 × 82,438.72
4. Step 4: Simplify right side
   116,488.96x = 13,227,734,495.54
5. Step 5: Solve for x
   x = 13,227,734,495.54/116,488.96
6. Step 6: Final answer
   x = 113,553.55