Finding the Fourth Proportional to 5,422.58, 8,127.89 and 3,547.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,422.58 : 8,127.89 = 3,547.69 : x
2. Step 2: Convert to fraction form
   5,422.58/8,127.89 = 3,547.69/x
3. Step 3: Cross multiply
   5,422.58x = 8,127.89 × 3,547.69
4. Step 4: Simplify right side
   5,422.58x = 28,835,252.14
5. Step 5: Solve for x
   x = 28,835,252.14/5,422.58
6. Step 6: Final answer
   x = 5,317.63