Finding the Fourth Proportional to 13,127.16, 19,664.52 and 8,956.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,127.16 : 19,664.52 = 8,956.83 : x
2. Step 2: Convert to fraction form
   13,127.16/19,664.52 = 8,956.83/x
3. Step 3: Cross multiply
   13,127.16x = 19,664.52 × 8,956.83
4. Step 4: Simplify right side
   13,127.16x = 176,131,742.59
5. Step 5: Solve for x
   x = 176,131,742.59/13,127.16
6. Step 6: Final answer
   x = 13,417.35