Finding the Fourth Proportional to 113,417.36, 170,007.33 and 42,311.39

Step by Step Solution

1. Step 1: Write the proportion equation
   113,417.36 : 170,007.33 = 42,311.39 : x
2. Step 2: Convert to fraction form
   113,417.36/170,007.33 = 42,311.39/x
3. Step 3: Cross multiply
   113,417.36x = 170,007.33 × 42,311.39
4. Step 4: Simplify right side
   113,417.36x = 7,193,245,592.45
5. Step 5: Solve for x
   x = 7,193,245,592.45/113,417.36
6. Step 6: Final answer
   x = 63,422.79