Finding the Fourth Proportional to 10,661.33, 14,712.69 and 6,187.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,661.33 : 14,712.69 = 6,187.74 : x
2. Step 2: Convert to fraction form
   10,661.33/14,712.69 = 6,187.74/x
3. Step 3: Cross multiply
   10,661.33x = 14,712.69 × 6,187.74
4. Step 4: Simplify right side
   10,661.33x = 91,038,300.42
5. Step 5: Solve for x
   x = 91,038,300.42/10,661.33
6. Step 6: Final answer
   x = 8,539.12