Finding the Fourth Proportional to 10,456.29, 14,429.95 and 5,918.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,456.29 : 14,429.95 = 5,918.63 : x
2. Step 2: Convert to fraction form
   10,456.29/14,429.95 = 5,918.63/x
3. Step 3: Cross multiply
   10,456.29x = 14,429.95 × 5,918.63
4. Step 4: Simplify right side
   10,456.29x = 85,405,448.02
5. Step 5: Solve for x
   x = 85,405,448.02/10,456.29
6. Step 6: Final answer
   x = 8,167.85