Finding the Fourth Proportional to 9,023.56, 12,452.42 and 4,990.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,023.56 : 12,452.42 = 4,990.56 : x
2. Step 2: Convert to fraction form
   9,023.56/12,452.42 = 4,990.56/x
3. Step 3: Cross multiply
   9,023.56x = 12,452.42 × 4,990.56
4. Step 4: Simplify right side
   9,023.56x = 62,144,549.16
5. Step 5: Solve for x
   x = 62,144,549.16/9,023.56
6. Step 6: Final answer
   x = 6,886.93