Finding the Fourth Proportional to 7,259.78, 10,890.17 and 2,877.23

Step by Step Solution

1. Step 1: Write the proportion equation
   7,259.78 : 10,890.17 = 2,877.23 : x
2. Step 2: Convert to fraction form
   7,259.78/10,890.17 = 2,877.23/x
3. Step 3: Cross multiply
   7,259.78x = 10,890.17 × 2,877.23
4. Step 4: Simplify right side
   7,259.78x = 31,333,523.83
5. Step 5: Solve for x
   x = 31,333,523.83/7,259.78
6. Step 6: Final answer
   x = 4,316.04