Finding the Fourth Proportional to 13,635.26, 18,816.56 and 7,585.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,635.26 : 18,816.56 = 7,585.31 : x
2. Step 2: Convert to fraction form
   13,635.26/18,816.56 = 7,585.31/x
3. Step 3: Cross multiply
   13,635.26x = 18,816.56 × 7,585.31
4. Step 4: Simplify right side
   13,635.26x = 142,729,308.72
5. Step 5: Solve for x
   x = 142,729,308.72/13,635.26
6. Step 6: Final answer
   x = 10,467.67