Finding the Fourth Proportional to 10,116.48, 13,954.72 and 7,874.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,116.48 : 13,954.72 = 7,874.80 : x
2. Step 2: Convert to fraction form
   10,116.48/13,954.72 = 7,874.80/x
3. Step 3: Cross multiply
   10,116.48x = 13,954.72 × 7,874.80
4. Step 4: Simplify right side
   10,116.48x = 109,890,629.06
5. Step 5: Solve for x
   x = 109,890,629.06/10,116.48
6. Step 6: Final answer
   x = 10,862.54