Finding the Fourth Proportional to 11,690.01, 17,531.37 and 3,897

Step by Step Solution

1. Step 1: Write the proportion equation
   11,690.01 : 17,531.37 = 3,897 : x
2. Step 2: Convert to fraction form
   11,690.01/17,531.37 = 3,897/x
3. Step 3: Cross multiply
   11,690.01x = 17,531.37 × 3,897
4. Step 4: Simplify right side
   11,690.01x = 68,319,748.89
5. Step 5: Solve for x
   x = 68,319,748.89/11,690.01
6. Step 6: Final answer
   x = 5,844.28