Finding the Fourth Proportional to 13,923.56, 19,215.54 and 7,636.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,923.56 : 19,215.54 = 7,636.52 : x
2. Step 2: Convert to fraction form
   13,923.56/19,215.54 = 7,636.52/x
3. Step 3: Cross multiply
   13,923.56x = 19,215.54 × 7,636.52
4. Step 4: Simplify right side
   13,923.56x = 146,739,855.52
5. Step 5: Solve for x
   x = 146,739,855.52/13,923.56
6. Step 6: Final answer
   x = 10,538.96