Finding the Fourth Proportional to 21,164.69, 31,748.04 and 17,460.05

Step by Step Solution

1. Step 1: Write the proportion equation
   21,164.69 : 31,748.04 = 17,460.05 : x
2. Step 2: Convert to fraction form
   21,164.69/31,748.04 = 17,460.05/x
3. Step 3: Cross multiply
   21,164.69x = 31,748.04 × 17,460.05
4. Step 4: Simplify right side
   21,164.69x = 554,322,207.06
5. Step 5: Solve for x
   x = 554,322,207.06/21,164.69
6. Step 6: Final answer
   x = 26,190.90