Finding the Fourth Proportional to 10,395.41, 14,345.43 and 5,679.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,395.41 : 14,345.43 = 5,679.72 : x
2. Step 2: Convert to fraction form
   10,395.41/14,345.43 = 5,679.72/x
3. Step 3: Cross multiply
   10,395.41x = 14,345.43 × 5,679.72
4. Step 4: Simplify right side
   10,395.41x = 81,478,025.68
5. Step 5: Solve for x
   x = 81,478,025.68/10,395.41
6. Step 6: Final answer
   x = 7,837.89