Finding the Fourth Proportional to 13,069.50, 18,023.69 and 10,080.60

Step by Step Solution

1. Step 1: Write the proportion equation
   13,069.50 : 18,023.69 = 10,080.60 : x
2. Step 2: Convert to fraction form
   13,069.50/18,023.69 = 10,080.60/x
3. Step 3: Cross multiply
   13,069.50x = 18,023.69 × 10,080.60
4. Step 4: Simplify right side
   13,069.50x = 181,689,559.01
5. Step 5: Solve for x
   x = 181,689,559.01/13,069.50
6. Step 6: Final answer
   x = 13,901.80