Finding the Fourth Proportional to 9,210.72, 12,710.72 and 5,019.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,210.72 : 12,710.72 = 5,019.04 : x
2. Step 2: Convert to fraction form
   9,210.72/12,710.72 = 5,019.04/x
3. Step 3: Cross multiply
   9,210.72x = 12,710.72 × 5,019.04
4. Step 4: Simplify right side
   9,210.72x = 63,795,612.11
5. Step 5: Solve for x
   x = 63,795,612.11/9,210.72
6. Step 6: Final answer
   x = 6,926.24