Finding the Fourth Proportional to 10,648.86, 15,973.32 and 3,721.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,648.86 : 15,973.32 = 3,721.74 : x
2. Step 2: Convert to fraction form
   10,648.86/15,973.32 = 3,721.74/x
3. Step 3: Cross multiply
   10,648.86x = 15,973.32 × 3,721.74
4. Step 4: Simplify right side
   10,648.86x = 59,448,543.98
5. Step 5: Solve for x
   x = 59,448,543.98/10,648.86
6. Step 6: Final answer
   x = 5,582.62