Finding the Fourth Proportional to 10,857.72, 14,983.68 and 5,889.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,857.72 : 14,983.68 = 5,889.72 : x
2. Step 2: Convert to fraction form
   10,857.72/14,983.68 = 5,889.72/x
3. Step 3: Cross multiply
   10,857.72x = 14,983.68 × 5,889.72
4. Step 4: Simplify right side
   10,857.72x = 88,249,679.77
5. Step 5: Solve for x
   x = 88,249,679.77/10,857.72
6. Step 6: Final answer
   x = 8,127.83