Finding the Fourth Proportional to 13,483.89, 18,607.25 and 7,515.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,483.89 : 18,607.25 = 7,515.27 : x
2. Step 2: Convert to fraction form
   13,483.89/18,607.25 = 7,515.27/x
3. Step 3: Cross multiply
   13,483.89x = 18,607.25 × 7,515.27
4. Step 4: Simplify right side
   13,483.89x = 139,838,526.50
5. Step 5: Solve for x
   x = 139,838,526.50/13,483.89
6. Step 6: Final answer
   x = 10,370.79