Finding the Fourth Proportional to 113,382.24, 170,066.52 and 42,290.88

Step by Step Solution

1. Step 1: Write the proportion equation
   113,382.24 : 170,066.52 = 42,290.88 : x
2. Step 2: Convert to fraction form
   113,382.24/170,066.52 = 42,290.88/x
3. Step 3: Cross multiply
   113,382.24x = 170,066.52 × 42,290.88
4. Step 4: Simplify right side
   113,382.24x = 7,192,262,789.34
5. Step 5: Solve for x
   x = 7,192,262,789.34/113,382.24
6. Step 6: Final answer
   x = 63,433.77