Finding the Fourth Proportional to 8,775.72, 12,109.14 and 5,049

Step by Step Solution

1. Step 1: Write the proportion equation
   8,775.72 : 12,109.14 = 5,049 : x
2. Step 2: Convert to fraction form
   8,775.72/12,109.14 = 5,049/x
3. Step 3: Cross multiply
   8,775.72x = 12,109.14 × 5,049
4. Step 4: Simplify right side
   8,775.72x = 61,139,047.86
5. Step 5: Solve for x
   x = 61,139,047.86/8,775.72
6. Step 6: Final answer
   x = 6,966.84