Finding the Fourth Proportional to 12,590.89, 17,374.06 and 7,284.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,590.89 : 17,374.06 = 7,284.71 : x
2. Step 2: Convert to fraction form
   12,590.89/17,374.06 = 7,284.71/x
3. Step 3: Cross multiply
   12,590.89x = 17,374.06 × 7,284.71
4. Step 4: Simplify right side
   12,590.89x = 126,564,988.62
5. Step 5: Solve for x
   x = 126,564,988.62/12,590.89
6. Step 6: Final answer
   x = 10,052.11