Finding the Fourth Proportional to 16,388.78, 24,562.58 and 7,017.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,388.78 : 24,562.58 = 7,017.75 : x
2. Step 2: Convert to fraction form
   16,388.78/24,562.58 = 7,017.75/x
3. Step 3: Cross multiply
   16,388.78x = 24,562.58 × 7,017.75
4. Step 4: Simplify right side
   16,388.78x = 172,374,010.71
5. Step 5: Solve for x
   x = 172,374,010.71/16,388.78
6. Step 6: Final answer
   x = 10,517.81