Finding the Fourth Proportional to 10,428.27, 14,391.29 and 5,890.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,428.27 : 14,391.29 = 5,890.59 : x
2. Step 2: Convert to fraction form
   10,428.27/14,391.29 = 5,890.59/x
3. Step 3: Cross multiply
   10,428.27x = 14,391.29 × 5,890.59
4. Step 4: Simplify right side
   10,428.27x = 84,773,188.96
5. Step 5: Solve for x
   x = 84,773,188.96/10,428.27
6. Step 6: Final answer
   x = 8,129.17