Finding the Fourth Proportional to 25,210.91, 37,821.83 and 7,680.27

Step by Step Solution

1. Step 1: Write the proportion equation
   25,210.91 : 37,821.83 = 7,680.27 : x
2. Step 2: Convert to fraction form
   25,210.91/37,821.83 = 7,680.27/x
3. Step 3: Cross multiply
   25,210.91x = 37,821.83 × 7,680.27
4. Step 4: Simplify right side
   25,210.91x = 290,481,827.89
5. Step 5: Solve for x
   x = 290,481,827.89/25,210.91
6. Step 6: Final answer
   x = 11,522.07