Finding the Fourth Proportional to 11,112.12, 16,671.15 and 4,872.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,112.12 : 16,671.15 = 4,872.69 : x
2. Step 2: Convert to fraction form
   11,112.12/16,671.15 = 4,872.69/x
3. Step 3: Cross multiply
   11,112.12x = 16,671.15 × 4,872.69
4. Step 4: Simplify right side
   11,112.12x = 81,233,345.89
5. Step 5: Solve for x
   x = 81,233,345.89/11,112.12
6. Step 6: Final answer
   x = 7,310.34