Finding the Fourth Proportional to 7,171.95, 10,762.89 and 2,789.45

Step by Step Solution

1. Step 1: Write the proportion equation
   7,171.95 : 10,762.89 = 2,789.45 : x
2. Step 2: Convert to fraction form
   7,171.95/10,762.89 = 2,789.45/x
3. Step 3: Cross multiply
   7,171.95x = 10,762.89 × 2,789.45
4. Step 4: Simplify right side
   7,171.95x = 30,022,543.51
5. Step 5: Solve for x
   x = 30,022,543.51/7,171.95
6. Step 6: Final answer
   x = 4,186.11