Finding the Fourth Proportional to 16,657.56, 22,987.04 and 9,103.90

Step by Step Solution

1. Step 1: Write the proportion equation
   16,657.56 : 22,987.04 = 9,103.90 : x
2. Step 2: Convert to fraction form
   16,657.56/22,987.04 = 9,103.90/x
3. Step 3: Cross multiply
   16,657.56x = 22,987.04 × 9,103.90
4. Step 4: Simplify right side
   16,657.56x = 209,271,667.94
5. Step 5: Solve for x
   x = 209,271,667.94/16,657.56
6. Step 6: Final answer
   x = 12,563.17