Finding the Fourth Proportional to 10,255.59, 14,152.28 and 5,779.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,255.59 : 14,152.28 = 5,779.31 : x
2. Step 2: Convert to fraction form
   10,255.59/14,152.28 = 5,779.31/x
3. Step 3: Cross multiply
   10,255.59x = 14,152.28 × 5,779.31
4. Step 4: Simplify right side
   10,255.59x = 81,790,313.67
5. Step 5: Solve for x
   x = 81,790,313.67/10,255.59
6. Step 6: Final answer
   x = 7,975.19