Finding the Fourth Proportional to 13,479.09, 18,600.89 and 7,510.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,479.09 : 18,600.89 = 7,510.63 : x
2. Step 2: Convert to fraction form
   13,479.09/18,600.89 = 7,510.63/x
3. Step 3: Cross multiply
   13,479.09x = 18,600.89 × 7,510.63
4. Step 4: Simplify right side
   13,479.09x = 139,704,271.90
5. Step 5: Solve for x
   x = 139,704,271.90/13,479.09
6. Step 6: Final answer
   x = 10,364.52