Finding the Fourth Proportional to 5,090.94, 7,025.12 and 3,101.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,090.94 : 7,025.12 = 3,101.25 : x
2. Step 2: Convert to fraction form
   5,090.94/7,025.12 = 3,101.25/x
3. Step 3: Cross multiply
   5,090.94x = 7,025.12 × 3,101.25
4. Step 4: Simplify right side
   5,090.94x = 21,786,637.89
5. Step 5: Solve for x
   x = 21,786,637.89/5,090.94
6. Step 6: Final answer
   x = 4,279.49