Finding the Fourth Proportional to 9,870.26, 13,613.28 and 5,890.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,870.26 : 13,613.28 = 5,890.52 : x
2. Step 2: Convert to fraction form
   9,870.26/13,613.28 = 5,890.52/x
3. Step 3: Cross multiply
   9,870.26x = 13,613.28 × 5,890.52
4. Step 4: Simplify right side
   9,870.26x = 80,189,298.11
5. Step 5: Solve for x
   x = 80,189,298.11/9,870.26
6. Step 6: Final answer
   x = 8,124.33