Finding the Fourth Proportional to 15,308.72, 22,957.68 and 4,917.68

Step by Step Solution

1. Step 1: Write the proportion equation
   15,308.72 : 22,957.68 = 4,917.68 : x
2. Step 2: Convert to fraction form
   15,308.72/22,957.68 = 4,917.68/x
3. Step 3: Cross multiply
   15,308.72x = 22,957.68 × 4,917.68
4. Step 4: Simplify right side
   15,308.72x = 112,898,523.78
5. Step 5: Solve for x
   x = 112,898,523.78/15,308.72
6. Step 6: Final answer
   x = 7,374.79