Finding the Fourth Proportional to 15,462.15, 21,337.56 and 8,388.42

Step by Step Solution

1. Step 1: Write the proportion equation
   15,462.15 : 21,337.56 = 8,388.42 : x
2. Step 2: Convert to fraction form
   15,462.15/21,337.56 = 8,388.42/x
3. Step 3: Cross multiply
   15,462.15x = 21,337.56 × 8,388.42
4. Step 4: Simplify right side
   15,462.15x = 178,988,415.06
5. Step 5: Solve for x
   x = 178,988,415.06/15,462.15
6. Step 6: Final answer
   x = 11,575.91