Finding the Fourth Proportional to 13,298.76, 18,351.33 and 7,633.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,298.76 : 18,351.33 = 7,633.37 : x
2. Step 2: Convert to fraction form
   13,298.76/18,351.33 = 7,633.37/x
3. Step 3: Cross multiply
   13,298.76x = 18,351.33 × 7,633.37
4. Step 4: Simplify right side
   13,298.76x = 140,082,400.13
5. Step 5: Solve for x
   x = 140,082,400.13/13,298.76
6. Step 6: Final answer
   x = 10,533.49