Finding the Fourth Proportional to 10,854.72, 14,979.54 and 5,886.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,854.72 : 14,979.54 = 5,886.72 : x
2. Step 2: Convert to fraction form
   10,854.72/14,979.54 = 5,886.72/x
3. Step 3: Cross multiply
   10,854.72x = 14,979.54 × 5,886.72
4. Step 4: Simplify right side
   10,854.72x = 88,180,357.71
5. Step 5: Solve for x
   x = 88,180,357.71/10,854.72
6. Step 6: Final answer
   x = 8,123.69