Finding the Fourth Proportional to 12,672, 17,488.16 and 7,083.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,672 : 17,488.16 = 7,083.52 : x
2. Step 2: Convert to fraction form
   12,672/17,488.16 = 7,083.52/x
3. Step 3: Cross multiply
   12,672x = 17,488.16 × 7,083.52
4. Step 4: Simplify right side
   12,672x = 123,877,731.12
5. Step 5: Solve for x
   x = 123,877,731.12/12,672
6. Step 6: Final answer
   x = 9,775.70