Finding the Fourth Proportional to 12,061.47, 16,645.73 and 6,958.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,061.47 : 16,645.73 = 6,958.60 : x
2. Step 2: Convert to fraction form
   12,061.47/16,645.73 = 6,958.60/x
3. Step 3: Cross multiply
   12,061.47x = 16,645.73 × 6,958.60
4. Step 4: Simplify right side
   12,061.47x = 115,830,976.78
5. Step 5: Solve for x
   x = 115,830,976.78/12,061.47
6. Step 6: Final answer
   x = 9,603.39