Finding the Fourth Proportional to 16,587.48, 22,890.50 and 9,513.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,587.48 : 22,890.50 = 9,513.75 : x
2. Step 2: Convert to fraction form
   16,587.48/22,890.50 = 9,513.75/x
3. Step 3: Cross multiply
   16,587.48x = 22,890.50 × 9,513.75
4. Step 4: Simplify right side
   16,587.48x = 217,774,568.32
5. Step 5: Solve for x
   x = 217,774,568.32/16,587.48
6. Step 6: Final answer
   x = 13,128.85