Finding the Fourth Proportional to 12,852.47, 17,740.16 and 7,476.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,852.47 : 17,740.16 = 7,476.15 : x
2. Step 2: Convert to fraction form
   12,852.47/17,740.16 = 7,476.15/x
3. Step 3: Cross multiply
   12,852.47x = 17,740.16 × 7,476.15
4. Step 4: Simplify right side
   12,852.47x = 132,628,096.63
5. Step 5: Solve for x
   x = 132,628,096.63/12,852.47
6. Step 6: Final answer
   x = 10,319.27