Finding the Fourth Proportional to 16,665.63, 23,001.35 and 9,590.55

Step by Step Solution

1. Step 1: Write the proportion equation
   16,665.63 : 23,001.35 = 9,590.55 : x
2. Step 2: Convert to fraction form
   16,665.63/23,001.35 = 9,590.55/x
3. Step 3: Cross multiply
   16,665.63x = 23,001.35 × 9,590.55
4. Step 4: Simplify right side
   16,665.63x = 220,595,549.29
5. Step 5: Solve for x
   x = 220,595,549.29/16,665.63
6. Step 6: Final answer
   x = 13,236.56