Finding the Fourth Proportional to 12,638.72, 17,441.52 and 7,050.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,638.72 : 17,441.52 = 7,050.08 : x
2. Step 2: Convert to fraction form
   12,638.72/17,441.52 = 7,050.08/x
3. Step 3: Cross multiply
   12,638.72x = 17,441.52 × 7,050.08
4. Step 4: Simplify right side
   12,638.72x = 122,964,111.32
5. Step 5: Solve for x
   x = 122,964,111.32/12,638.72
6. Step 6: Final answer
   x = 9,729.16