Finding the Fourth Proportional to 9,020.69, 12,447.48 and 4,986.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,020.69 : 12,447.48 = 4,986.98 : x
2. Step 2: Convert to fraction form
   9,020.69/12,447.48 = 4,986.98/x
3. Step 3: Cross multiply
   9,020.69x = 12,447.48 × 4,986.98
4. Step 4: Simplify right side
   9,020.69x = 62,075,333.81
5. Step 5: Solve for x
   x = 62,075,333.81/9,020.69
6. Step 6: Final answer
   x = 6,881.44