Finding the Fourth Proportional to 17,097.62, 25,620.91 and 13,999.37

Step by Step Solution

1. Step 1: Write the proportion equation
   17,097.62 : 25,620.91 = 13,999.37 : x
2. Step 2: Convert to fraction form
   17,097.62/25,620.91 = 13,999.37/x
3. Step 3: Cross multiply
   17,097.62x = 25,620.91 × 13,999.37
4. Step 4: Simplify right side
   17,097.62x = 358,676,435.72
5. Step 5: Solve for x
   x = 358,676,435.72/17,097.62
6. Step 6: Final answer
   x = 20,978.16