Finding the Fourth Proportional to 4,070.91, 5,620.37 and 3,124.89

Step by Step Solution

1. Step 1: Write the proportion equation
   4,070.91 : 5,620.37 = 3,124.89 : x
2. Step 2: Convert to fraction form
   4,070.91/5,620.37 = 3,124.89/x
3. Step 3: Cross multiply
   4,070.91x = 5,620.37 × 3,124.89
4. Step 4: Simplify right side
   4,070.91x = 17,563,009.91
5. Step 5: Solve for x
   x = 17,563,009.91/4,070.91
6. Step 6: Final answer
   x = 4,314.28