Finding the Fourth Proportional to 13,099.97, 18,043.52 and 10,069.29

Step by Step Solution

1. Step 1: Write the proportion equation
   13,099.97 : 18,043.52 = 10,069.29 : x
2. Step 2: Convert to fraction form
   13,099.97/18,043.52 = 10,069.29/x
3. Step 3: Cross multiply
   13,099.97x = 18,043.52 × 10,069.29
4. Step 4: Simplify right side
   13,099.97x = 181,685,385.15
5. Step 5: Solve for x
   x = 181,685,385.15/13,099.97
6. Step 6: Final answer
   x = 13,869.15