Finding the Fourth Proportional to 8,274.40, 12,404.61 and 3,590.87

Step by Step Solution

1. Step 1: Write the proportion equation
   8,274.40 : 12,404.61 = 3,590.87 : x
2. Step 2: Convert to fraction form
   8,274.40/12,404.61 = 3,590.87/x
3. Step 3: Cross multiply
   8,274.40x = 12,404.61 × 3,590.87
4. Step 4: Simplify right side
   8,274.40x = 44,543,279.89
5. Step 5: Solve for x
   x = 44,543,279.89/8,274.40
6. Step 6: Final answer
   x = 5,383.27