Finding the Fourth Proportional to 113,766.30, 170,676.92 and 42,689.52

Step by Step Solution

1. Step 1: Write the proportion equation
   113,766.30 : 170,676.92 = 42,689.52 : x
2. Step 2: Convert to fraction form
   113,766.30/170,676.92 = 42,689.52/x
3. Step 3: Cross multiply
   113,766.30x = 170,676.92 × 42,689.52
4. Step 4: Simplify right side
   113,766.30x = 7,286,115,896.60
5. Step 5: Solve for x
   x = 7,286,115,896.60/113,766.30
6. Step 6: Final answer
   x = 64,044.59