Finding the Fourth Proportional to 22,081.16, 30,460.56 and 13,000.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,081.16 : 30,460.56 = 13,000.16 : x
2. Step 2: Convert to fraction form
   22,081.16/30,460.56 = 13,000.16/x
3. Step 3: Cross multiply
   22,081.16x = 30,460.56 × 13,000.16
4. Step 4: Simplify right side
   22,081.16x = 395,992,153.69
5. Step 5: Solve for x
   x = 395,992,153.69/22,081.16
6. Step 6: Final answer
   x = 17,933.49