Finding the Fourth Proportional to 10,185.38, 14,056.41 and 5,708.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,185.38 : 14,056.41 = 5,708.91 : x
2. Step 2: Convert to fraction form
   10,185.38/14,056.41 = 5,708.91/x
3. Step 3: Cross multiply
   10,185.38x = 14,056.41 × 5,708.91
4. Step 4: Simplify right side
   10,185.38x = 80,246,779.61
5. Step 5: Solve for x
   x = 80,246,779.61/10,185.38
6. Step 6: Final answer
   x = 7,878.63