Finding the Fourth Proportional to 12,644.88, 17,450.48 and 7,055.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,644.88 : 17,450.48 = 7,055.88 : x
2. Step 2: Convert to fraction form
   12,644.88/17,450.48 = 7,055.88/x
3. Step 3: Cross multiply
   12,644.88x = 17,450.48 × 7,055.88
4. Step 4: Simplify right side
   12,644.88x = 123,128,492.82
5. Step 5: Solve for x
   x = 123,128,492.82/12,644.88
6. Step 6: Final answer
   x = 9,737.42