Finding the Fourth Proportional to 8,822.12, 12,176.55 and 5,672.84

Step by Step Solution

1. Step 1: Write the proportion equation
   8,822.12 : 12,176.55 = 5,672.84 : x
2. Step 2: Convert to fraction form
   8,822.12/12,176.55 = 5,672.84/x
3. Step 3: Cross multiply
   8,822.12x = 12,176.55 × 5,672.84
4. Step 4: Simplify right side
   8,822.12x = 69,075,559.02
5. Step 5: Solve for x
   x = 69,075,559.02/8,822.12
6. Step 6: Final answer
   x = 7,829.82