Finding the Fourth Proportional to 8,590.42, 12,885.20 and 5,034.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,590.42 : 12,885.20 = 5,034.52 : x
2. Step 2: Convert to fraction form
   8,590.42/12,885.20 = 5,034.52/x
3. Step 3: Cross multiply
   8,590.42x = 12,885.20 × 5,034.52
4. Step 4: Simplify right side
   8,590.42x = 64,870,797.10
5. Step 5: Solve for x
   x = 64,870,797.10/8,590.42
6. Step 6: Final answer
   x = 7,551.53