Finding the Fourth Proportional to 10,483.21, 15,721.48 and 3,461.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,483.21 : 15,721.48 = 3,461.91 : x
2. Step 2: Convert to fraction form
   10,483.21/15,721.48 = 3,461.91/x
3. Step 3: Cross multiply
   10,483.21x = 15,721.48 × 3,461.91
4. Step 4: Simplify right side
   10,483.21x = 54,426,348.83
5. Step 5: Solve for x
   x = 54,426,348.83/10,483.21
6. Step 6: Final answer
   x = 5,191.77