Finding the Fourth Proportional to 3,910.91, 5,858.46 and 3,030.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910.91 : 5,858.46 = 3,030.23 : x
2. Step 2: Convert to fraction form
   3,910.91/5,858.46 = 3,030.23/x
3. Step 3: Cross multiply
   3,910.91x = 5,858.46 × 3,030.23
4. Step 4: Simplify right side
   3,910.91x = 17,752,495.89
5. Step 5: Solve for x
   x = 17,752,495.89/3,910.91
6. Step 6: Final answer
   x = 4,539.23