Finding the Fourth Proportional to 113,397.05, 169,976.91 and 42,291.10

Step by Step Solution

1. Step 1: Write the proportion equation
   113,397.05 : 169,976.91 = 42,291.10 : x
2. Step 2: Convert to fraction form
   113,397.05/169,976.91 = 42,291.10/x
3. Step 3: Cross multiply
   113,397.05x = 169,976.91 × 42,291.10
4. Step 4: Simplify right side
   113,397.05x = 7,188,510,498.50
5. Step 5: Solve for x
   x = 7,188,510,498.50/113,397.05
6. Step 6: Final answer
   x = 63,392.39