Finding the Fourth Proportional to 10,784.69, 16,155.16 and 5,579.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,784.69 : 16,155.16 = 5,579.63 : x
2. Step 2: Convert to fraction form
   10,784.69/16,155.16 = 5,579.63/x
3. Step 3: Cross multiply
   10,784.69x = 16,155.16 × 5,579.63
4. Step 4: Simplify right side
   10,784.69x = 90,139,720.67
5. Step 5: Solve for x
   x = 90,139,720.67/10,784.69
6. Step 6: Final answer
   x = 8,358.12