Finding the Fourth Proportional to 113,829.58, 170,762.89 and 42,757.75

Step by Step Solution

1. Step 1: Write the proportion equation
   113,829.58 : 170,762.89 = 42,757.75 : x
2. Step 2: Convert to fraction form
   113,829.58/170,762.89 = 42,757.75/x
3. Step 3: Cross multiply
   113,829.58x = 170,762.89 × 42,757.75
4. Step 4: Simplify right side
   113,829.58x = 7,301,436,959.90
5. Step 5: Solve for x
   x = 7,301,436,959.90/113,829.58
6. Step 6: Final answer
   x = 64,143.58