Finding the Fourth Proportional to 10,810.39, 16,222.79 and 3,790.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,810.39 : 16,222.79 = 3,790.40 : x
2. Step 2: Convert to fraction form
   10,810.39/16,222.79 = 3,790.40/x
3. Step 3: Cross multiply
   10,810.39x = 16,222.79 × 3,790.40
4. Step 4: Simplify right side
   10,810.39x = 61,490,796.91
5. Step 5: Solve for x
   x = 61,490,796.91/10,810.39
6. Step 6: Final answer
   x = 5,688.12