Finding the Fourth Proportional to 13,923.32, 19,214.15 and 7,636.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,923.32 : 19,214.15 = 7,636.10 : x
2. Step 2: Convert to fraction form
   13,923.32/19,214.15 = 7,636.10/x
3. Step 3: Cross multiply
   13,923.32x = 19,214.15 × 7,636.10
4. Step 4: Simplify right side
   13,923.32x = 146,721,036.56
5. Step 5: Solve for x
   x = 146,721,036.56/13,923.32
6. Step 6: Final answer
   x = 10,537.79