Finding the Fourth Proportional to 13,055.61, 18,010.71 and 7,676.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,055.61 : 18,010.71 = 7,676.27 : x
2. Step 2: Convert to fraction form
   13,055.61/18,010.71 = 7,676.27/x
3. Step 3: Cross multiply
   13,055.61x = 18,010.71 × 7,676.27
4. Step 4: Simplify right side
   13,055.61x = 138,254,982.80
5. Step 5: Solve for x
   x = 138,254,982.80/13,055.61
6. Step 6: Final answer
   x = 10,589.70