Finding the Fourth Proportional to 13,172.32, 19,758.86 and 5,772.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,172.32 : 19,758.86 = 5,772.96 : x
2. Step 2: Convert to fraction form
   13,172.32/19,758.86 = 5,772.96/x
3. Step 3: Cross multiply
   13,172.32x = 19,758.86 × 5,772.96
4. Step 4: Simplify right side
   13,172.32x = 114,067,108.43
5. Step 5: Solve for x
   x = 114,067,108.43/13,172.32
6. Step 6: Final answer
   x = 8,659.61