Finding the Fourth Proportional to 38,956.72, 58,443.72 and 18,168.88

Step by Step Solution

1. Step 1: Write the proportion equation
   38,956.72 : 58,443.72 = 18,168.88 : x
2. Step 2: Convert to fraction form
   38,956.72/58,443.72 = 18,168.88/x
3. Step 3: Cross multiply
   38,956.72x = 58,443.72 × 18,168.88
4. Step 4: Simplify right side
   38,956.72x = 1,061,856,935.43
5. Step 5: Solve for x
   x = 1,061,856,935.43/38,956.72
6. Step 6: Final answer
   x = 27,257.35