Finding the Fourth Proportional to 10,124.82, 13,990.08 and 7,787.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,124.82 : 13,990.08 = 7,787.16 : x
2. Step 2: Convert to fraction form
   10,124.82/13,990.08 = 7,787.16/x
3. Step 3: Cross multiply
   10,124.82x = 13,990.08 × 7,787.16
4. Step 4: Simplify right side
   10,124.82x = 108,942,991.37
5. Step 5: Solve for x
   x = 108,942,991.37/10,124.82
6. Step 6: Final answer
   x = 10,759.99