Finding the Fourth Proportional to 10,268.94, 14,168.88 and 7,881.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,268.94 : 14,168.88 = 7,881.60 : x
2. Step 2: Convert to fraction form
   10,268.94/14,168.88 = 7,881.60/x
3. Step 3: Cross multiply
   10,268.94x = 14,168.88 × 7,881.60
4. Step 4: Simplify right side
   10,268.94x = 111,673,444.61
5. Step 5: Solve for x
   x = 111,673,444.61/10,268.94
6. Step 6: Final answer
   x = 10,874.88