Finding the Fourth Proportional to 10,395.72, 14,345.46 and 5,679.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,395.72 : 14,345.46 = 5,679.72 : x
2. Step 2: Convert to fraction form
   10,395.72/14,345.46 = 5,679.72/x
3. Step 3: Cross multiply
   10,395.72x = 14,345.46 × 5,679.72
4. Step 4: Simplify right side
   10,395.72x = 81,478,196.07
5. Step 5: Solve for x
   x = 81,478,196.07/10,395.72
6. Step 6: Final answer
   x = 7,837.67