Finding the Fourth Proportional to 10,267.94, 14,167.50 and 7,880.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,267.94 : 14,167.50 = 7,880.60 : x
2. Step 2: Convert to fraction form
   10,267.94/14,167.50 = 7,880.60/x
3. Step 3: Cross multiply
   10,267.94x = 14,167.50 × 7,880.60
4. Step 4: Simplify right side
   10,267.94x = 111,648,400.50
5. Step 5: Solve for x
   x = 111,648,400.50/10,267.94
6. Step 6: Final answer
   x = 10,873.50