Finding the Fourth Proportional to 13,362.50, 18,436.88 and 7,698.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,362.50 : 18,436.88 = 7,698.92 : x
2. Step 2: Convert to fraction form
   13,362.50/18,436.88 = 7,698.92/x
3. Step 3: Cross multiply
   13,362.50x = 18,436.88 × 7,698.92
4. Step 4: Simplify right side
   13,362.50x = 141,943,991.23
5. Step 5: Solve for x
   x = 141,943,991.23/13,362.50
6. Step 6: Final answer
   x = 10,622.56