Finding the Fourth Proportional to 15,890.42, 23,809.71 and 8,088.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,890.42 : 23,809.71 = 8,088.50 : x
2. Step 2: Convert to fraction form
   15,890.42/23,809.71 = 8,088.50/x
3. Step 3: Cross multiply
   15,890.42x = 23,809.71 × 8,088.50
4. Step 4: Simplify right side
   15,890.42x = 192,584,839.34
5. Step 5: Solve for x
   x = 192,584,839.34/15,890.42
6. Step 6: Final answer
   x = 12,119.56