Finding the Fourth Proportional to 10,661.60, 14,711.52 and 6,185.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,661.60 : 14,711.52 = 6,185.72 : x
2. Step 2: Convert to fraction form
   10,661.60/14,711.52 = 6,185.72/x
3. Step 3: Cross multiply
   10,661.60x = 14,711.52 × 6,185.72
4. Step 4: Simplify right side
   10,661.60x = 91,001,343.49
5. Step 5: Solve for x
   x = 91,001,343.49/10,661.60
6. Step 6: Final answer
   x = 8,535.43