Finding the Fourth Proportional to 8,590.69, 12,892.64 and 3,848.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,590.69 : 12,892.64 = 3,848.31 : x
2. Step 2: Convert to fraction form
   8,590.69/12,892.64 = 3,848.31/x
3. Step 3: Cross multiply
   8,590.69x = 12,892.64 × 3,848.31
4. Step 4: Simplify right side
   8,590.69x = 49,614,856.20
5. Step 5: Solve for x
   x = 49,614,856.20/8,590.69
6. Step 6: Final answer
   x = 5,775.42