Finding the Fourth Proportional to 9,280.01, 12,806.58 and 5,087.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,280.01 : 12,806.58 = 5,087.99 : x
2. Step 2: Convert to fraction form
   9,280.01/12,806.58 = 5,087.99/x
3. Step 3: Cross multiply
   9,280.01x = 12,806.58 × 5,087.99
4. Step 4: Simplify right side
   9,280.01x = 65,159,750.97
5. Step 5: Solve for x
   x = 65,159,750.97/9,280.01
6. Step 6: Final answer
   x = 7,021.52