Finding the Fourth Proportional to 13,104.04, 18,077.53 and 7,722.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,104.04 : 18,077.53 = 7,722.81 : x
2. Step 2: Convert to fraction form
   13,104.04/18,077.53 = 7,722.81/x
3. Step 3: Cross multiply
   13,104.04x = 18,077.53 × 7,722.81
4. Step 4: Simplify right side
   13,104.04x = 139,609,200.46
5. Step 5: Solve for x
   x = 139,609,200.46/13,104.04
6. Step 6: Final answer
   x = 10,653.91