Finding the Fourth Proportional to 9,387.72, 12,947.82 and 6,554.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,387.72 : 12,947.82 = 6,554.16 : x
2. Step 2: Convert to fraction form
   9,387.72/12,947.82 = 6,554.16/x
3. Step 3: Cross multiply
   9,387.72x = 12,947.82 × 6,554.16
4. Step 4: Simplify right side
   9,387.72x = 84,862,083.93
5. Step 5: Solve for x
   x = 84,862,083.93/9,387.72
6. Step 6: Final answer
   x = 9,039.69