Finding the Fourth Proportional to 9,140.22, 13,710.42 and 3,873.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,140.22 : 13,710.42 = 3,873.78 : x
2. Step 2: Convert to fraction form
   9,140.22/13,710.42 = 3,873.78/x
3. Step 3: Cross multiply
   9,140.22x = 13,710.42 × 3,873.78
4. Step 4: Simplify right side
   9,140.22x = 53,111,150.79
5. Step 5: Solve for x
   x = 53,111,150.79/9,140.22
6. Step 6: Final answer
   x = 5,810.71