Finding the Fourth Proportional to 9,150.47, 13,719.50 and 2,908.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150.47 : 13,719.50 = 2,908.61 : x
2. Step 2: Convert to fraction form
   9,150.47/13,719.50 = 2,908.61/x
3. Step 3: Cross multiply
   9,150.47x = 13,719.50 × 2,908.61
4. Step 4: Simplify right side
   9,150.47x = 39,904,660.35
5. Step 5: Solve for x
   x = 39,904,660.35/9,150.47
6. Step 6: Final answer
   x = 4,360.94