Finding the Fourth Proportional to 10,890.81, 16,300.22 and 9,370.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,890.81 : 16,300.22 = 9,370.17 : x
2. Step 2: Convert to fraction form
   10,890.81/16,300.22 = 9,370.17/x
3. Step 3: Cross multiply
   10,890.81x = 16,300.22 × 9,370.17
4. Step 4: Simplify right side
   10,890.81x = 152,735,785.59
5. Step 5: Solve for x
   x = 152,735,785.59/10,890.81
6. Step 6: Final answer
   x = 14,024.28