Finding the Fourth Proportional to 9,997.10, 15,005.37 and 4,806.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,997.10 : 15,005.37 = 4,806.62 : x
2. Step 2: Convert to fraction form
   9,997.10/15,005.37 = 4,806.62/x
3. Step 3: Cross multiply
   9,997.10x = 15,005.37 × 4,806.62
4. Step 4: Simplify right side
   9,997.10x = 72,125,087.52
5. Step 5: Solve for x
   x = 72,125,087.52/9,997.10
6. Step 6: Final answer
   x = 7,214.60