Finding the Fourth Proportional to 12,852.34, 17,738.40 and 7,477.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,852.34 : 17,738.40 = 7,477.89 : x
2. Step 2: Convert to fraction form
   12,852.34/17,738.40 = 7,477.89/x
3. Step 3: Cross multiply
   12,852.34x = 17,738.40 × 7,477.89
4. Step 4: Simplify right side
   12,852.34x = 132,645,865.28
5. Step 5: Solve for x
   x = 132,645,865.28/12,852.34
6. Step 6: Final answer
   x = 10,320.75