Finding the Fourth Proportional to 10,405.74, 14,360.91 and 5,690.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,405.74 : 14,360.91 = 5,690.73 : x
2. Step 2: Convert to fraction form
   10,405.74/14,360.91 = 5,690.73/x
3. Step 3: Cross multiply
   10,405.74x = 14,360.91 × 5,690.73
4. Step 4: Simplify right side
   10,405.74x = 81,724,061.36
5. Step 5: Solve for x
   x = 81,724,061.36/10,405.74
6. Step 6: Final answer
   x = 7,853.75