Finding the Fourth Proportional to 16,103.95, 22,212.20 and 15,562.06

Step by Step Solution

1. Step 1: Write the proportion equation
   16,103.95 : 22,212.20 = 15,562.06 : x
2. Step 2: Convert to fraction form
   16,103.95/22,212.20 = 15,562.06/x
3. Step 3: Cross multiply
   16,103.95x = 22,212.20 × 15,562.06
4. Step 4: Simplify right side
   16,103.95x = 345,667,478.07
5. Step 5: Solve for x
   x = 345,667,478.07/16,103.95
6. Step 6: Final answer
   x = 21,464.77