Finding the Fourth Proportional to 12,787.34, 17,646.50 and 7,481.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,787.34 : 17,646.50 = 7,481.12 : x
2. Step 2: Convert to fraction form
   12,787.34/17,646.50 = 7,481.12/x
3. Step 3: Cross multiply
   12,787.34x = 17,646.50 × 7,481.12
4. Step 4: Simplify right side
   12,787.34x = 132,015,458.44
5. Step 5: Solve for x
   x = 132,015,458.44/12,787.34
6. Step 6: Final answer
   x = 10,323.92