Finding the Fourth Proportional to 11,923.96, 17,886.28 and 3,158.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,923.96 : 17,886.28 = 3,158.88 : x
2. Step 2: Convert to fraction form
   11,923.96/17,886.28 = 3,158.88/x
3. Step 3: Cross multiply
   11,923.96x = 17,886.28 × 3,158.88
4. Step 4: Simplify right side
   11,923.96x = 56,500,612.17
5. Step 5: Solve for x
   x = 56,500,612.17/11,923.96
6. Step 6: Final answer
   x = 4,738.41