Finding the Fourth Proportional to 10,649.59, 15,977.71 and 4,412.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,649.59 : 15,977.71 = 4,412.54 : x
2. Step 2: Convert to fraction form
   10,649.59/15,977.71 = 4,412.54/x
3. Step 3: Cross multiply
   10,649.59x = 15,977.71 × 4,412.54
4. Step 4: Simplify right side
   10,649.59x = 70,502,237.72
5. Step 5: Solve for x
   x = 70,502,237.72/10,649.59
6. Step 6: Final answer
   x = 6,620.18