Finding the Fourth Proportional to 17,744.09, 26,611.59 and 5,261.20

Step by Step Solution

1. Step 1: Write the proportion equation
   17,744.09 : 26,611.59 = 5,261.20 : x
2. Step 2: Convert to fraction form
   17,744.09/26,611.59 = 5,261.20/x
3. Step 3: Cross multiply
   17,744.09x = 26,611.59 × 5,261.20
4. Step 4: Simplify right side
   17,744.09x = 140,008,897.31
5. Step 5: Solve for x
   x = 140,008,897.31/17,744.09
6. Step 6: Final answer
   x = 7,890.45