Finding the Fourth Proportional to 10,671.52, 14,725.64 and 5,891.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,671.52 : 14,725.64 = 5,891.15 : x
2. Step 2: Convert to fraction form
   10,671.52/14,725.64 = 5,891.15/x
3. Step 3: Cross multiply
   10,671.52x = 14,725.64 × 5,891.15
4. Step 4: Simplify right side
   10,671.52x = 86,750,928.32
5. Step 5: Solve for x
   x = 86,750,928.32/10,671.52
6. Step 6: Final answer
   x = 8,129.20