Finding the Fourth Proportional to 15,300.22, 21,112.59 and 8,584.45

Step by Step Solution

1. Step 1: Write the proportion equation
   15,300.22 : 21,112.59 = 8,584.45 : x
2. Step 2: Convert to fraction form
   15,300.22/21,112.59 = 8,584.45/x
3. Step 3: Cross multiply
   15,300.22x = 21,112.59 × 8,584.45
4. Step 4: Simplify right side
   15,300.22x = 181,239,973.23
5. Step 5: Solve for x
   x = 181,239,973.23/15,300.22
6. Step 6: Final answer
   x = 11,845.58