Finding the Fourth Proportional to 10,518.12, 15,773.94 and 3,591

Step by Step Solution

1. Step 1: Write the proportion equation
   10,518.12 : 15,773.94 = 3,591 : x
2. Step 2: Convert to fraction form
   10,518.12/15,773.94 = 3,591/x
3. Step 3: Cross multiply
   10,518.12x = 15,773.94 × 3,591
4. Step 4: Simplify right side
   10,518.12x = 56,644,218.54
5. Step 5: Solve for x
   x = 56,644,218.54/10,518.12
6. Step 6: Final answer
   x = 5,385.39