Finding the Fourth Proportional to 13,466.76, 18,585.30 and 7,499.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,466.76 : 18,585.30 = 7,499.76 : x
2. Step 2: Convert to fraction form
   13,466.76/18,585.30 = 7,499.76/x
3. Step 3: Cross multiply
   13,466.76x = 18,585.30 × 7,499.76
4. Step 4: Simplify right side
   13,466.76x = 139,385,289.53
5. Step 5: Solve for x
   x = 139,385,289.53/13,466.76
6. Step 6: Final answer
   x = 10,350.32