Finding the Fourth Proportional to 53,069.04, 79,605.72 and 18,009

Step by Step Solution

1. Step 1: Write the proportion equation
   53,069.04 : 79,605.72 = 18,009 : x
2. Step 2: Convert to fraction form
   53,069.04/79,605.72 = 18,009/x
3. Step 3: Cross multiply
   53,069.04x = 79,605.72 × 18,009
4. Step 4: Simplify right side
   53,069.04x = 1,433,619,411.48
5. Step 5: Solve for x
   x = 1,433,619,411.48/53,069.04
6. Step 6: Final answer
   x = 27,014.23