Finding the Fourth Proportional to 15,536.48, 21,440.31 and 8,462.89

Step by Step Solution

1. Step 1: Write the proportion equation
   15,536.48 : 21,440.31 = 8,462.89 : x
2. Step 2: Convert to fraction form
   15,536.48/21,440.31 = 8,462.89/x
3. Step 3: Cross multiply
   15,536.48x = 21,440.31 × 8,462.89
4. Step 4: Simplify right side
   15,536.48x = 181,446,877.89
5. Step 5: Solve for x
   x = 181,446,877.89/15,536.48
6. Step 6: Final answer
   x = 11,678.76