Finding the Fourth Proportional to 9,846.16, 14,767.32 and 2,920.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,846.16 : 14,767.32 = 2,920.72 : x
2. Step 2: Convert to fraction form
   9,846.16/14,767.32 = 2,920.72/x
3. Step 3: Cross multiply
   9,846.16x = 14,767.32 × 2,920.72
4. Step 4: Simplify right side
   9,846.16x = 43,131,206.87
5. Step 5: Solve for x
   x = 43,131,206.87/9,846.16
6. Step 6: Final answer
   x = 4,380.51