Finding the Fourth Proportional to 13,303.69, 18,347.72 and 9,488.29

Step by Step Solution

1. Step 1: Write the proportion equation
   13,303.69 : 18,347.72 = 9,488.29 : x
2. Step 2: Convert to fraction form
   13,303.69/18,347.72 = 9,488.29/x
3. Step 3: Cross multiply
   13,303.69x = 18,347.72 × 9,488.29
4. Step 4: Simplify right side
   13,303.69x = 174,088,429.29
5. Step 5: Solve for x
   x = 174,088,429.29/13,303.69
6. Step 6: Final answer
   x = 13,085.72