Finding the Fourth Proportional to 13,976.34, 20,951.55 and 7,396.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,976.34 : 20,951.55 = 7,396.98 : x
2. Step 2: Convert to fraction form
   13,976.34/20,951.55 = 7,396.98/x
3. Step 3: Cross multiply
   13,976.34x = 20,951.55 × 7,396.98
4. Step 4: Simplify right side
   13,976.34x = 154,978,196.32
5. Step 5: Solve for x
   x = 154,978,196.32/13,976.34
6. Step 6: Final answer
   x = 11,088.61