Finding the Fourth Proportional to 13,061.54, 18,025.28 and 7,684.35

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061.54 : 18,025.28 = 7,684.35 : x
2. Step 2: Convert to fraction form
   13,061.54/18,025.28 = 7,684.35/x
3. Step 3: Cross multiply
   13,061.54x = 18,025.28 × 7,684.35
4. Step 4: Simplify right side
   13,061.54x = 138,512,521.95
5. Step 5: Solve for x
   x = 138,512,521.95/13,061.54
6. Step 6: Final answer
   x = 10,604.61