Finding the Fourth Proportional to 13,062.54, 18,026.66 and 7,685.35

Step by Step Solution

1. Step 1: Write the proportion equation
   13,062.54 : 18,026.66 = 7,685.35 : x
2. Step 2: Convert to fraction form
   13,062.54/18,026.66 = 7,685.35/x
3. Step 3: Cross multiply
   13,062.54x = 18,026.66 × 7,685.35
4. Step 4: Simplify right side
   13,062.54x = 138,541,191.43
5. Step 5: Solve for x
   x = 138,541,191.43/13,062.54
6. Step 6: Final answer
   x = 10,605.99