Finding the Fourth Proportional to 13,298.82, 18,355.20 and 7,634.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,298.82 : 18,355.20 = 7,634.52 : x
2. Step 2: Convert to fraction form
   13,298.82/18,355.20 = 7,634.52/x
3. Step 3: Cross multiply
   13,298.82x = 18,355.20 × 7,634.52
4. Step 4: Simplify right side
   13,298.82x = 140,133,141.50
5. Step 5: Solve for x
   x = 140,133,141.50/13,298.82
6. Step 6: Final answer
   x = 10,537.26