Finding the Fourth Proportional to 13,281.04, 18,327.90 and 7,616.00

Step by Step Solution

1. Step 1: Write the proportion equation
   13,281.04 : 18,327.90 = 7,616.00 : x
2. Step 2: Convert to fraction form
   13,281.04/18,327.90 = 7,616.00/x
3. Step 3: Cross multiply
   13,281.04x = 18,327.90 × 7,616.00
4. Step 4: Simplify right side
   13,281.04x = 139,585,360.78
5. Step 5: Solve for x
   x = 139,585,360.78/13,281.04
6. Step 6: Final answer
   x = 10,510.12