Finding the Fourth Proportional to 13,479.69, 18,601.16 and 7,510.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,479.69 : 18,601.16 = 7,510.30 : x
2. Step 2: Convert to fraction form
   13,479.69/18,601.16 = 7,510.30/x
3. Step 3: Cross multiply
   13,479.69x = 18,601.16 × 7,510.30
4. Step 4: Simplify right side
   13,479.69x = 139,700,291.95
5. Step 5: Solve for x
   x = 139,700,291.95/13,479.69
6. Step 6: Final answer
   x = 10,363.76