Finding the Fourth Proportional to 13,069.68, 18,023.86 and 10,080.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,069.68 : 18,023.86 = 10,080.78 : x
2. Step 2: Convert to fraction form
   13,069.68/18,023.86 = 10,080.78/x
3. Step 3: Cross multiply
   13,069.68x = 18,023.86 × 10,080.78
4. Step 4: Simplify right side
   13,069.68x = 181,694,567.41
5. Step 5: Solve for x
   x = 181,694,567.41/13,069.68
6. Step 6: Final answer
   x = 13,901.99