Finding the Fourth Proportional to 10,772.87, 14,871.60 and 7,946.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,772.87 : 14,871.60 = 7,946.10 : x
2. Step 2: Convert to fraction form
   10,772.87/14,871.60 = 7,946.10/x
3. Step 3: Cross multiply
   10,772.87x = 14,871.60 × 7,946.10
4. Step 4: Simplify right side
   10,772.87x = 118,171,220.76
5. Step 5: Solve for x
   x = 118,171,220.76/10,772.87
6. Step 6: Final answer
   x = 10,969.34