Finding the Fourth Proportional to 7,787.16, 10,746.72 and 7,262.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,787.16 : 10,746.72 = 7,262.28 : x
2. Step 2: Convert to fraction form
   7,787.16/10,746.72 = 7,262.28/x
3. Step 3: Cross multiply
   7,787.16x = 10,746.72 × 7,262.28
4. Step 4: Simplify right side
   7,787.16x = 78,045,689.72
5. Step 5: Solve for x
   x = 78,045,689.72/7,787.16
6. Step 6: Final answer
   x = 10,022.36