Finding the Fourth Proportional to 31,007.72, 46,516.78 and 14,360.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,007.72 : 46,516.78 = 14,360.96 : x
2. Step 2: Convert to fraction form
   31,007.72/46,516.78 = 14,360.96/x
3. Step 3: Cross multiply
   31,007.72x = 46,516.78 × 14,360.96
4. Step 4: Simplify right side
   31,007.72x = 668,025,616.91
5. Step 5: Solve for x
   x = 668,025,616.91/31,007.72
6. Step 6: Final answer
   x = 21,543.85