Finding the Fourth Proportional to 10,255.69, 14,152.90 and 5,779.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,255.69 : 14,152.90 = 5,779.51 : x
2. Step 2: Convert to fraction form
   10,255.69/14,152.90 = 5,779.51/x
3. Step 3: Cross multiply
   10,255.69x = 14,152.90 × 5,779.51
4. Step 4: Simplify right side
   10,255.69x = 81,796,827.08
5. Step 5: Solve for x
   x = 81,796,827.08/10,255.69
6. Step 6: Final answer
   x = 7,975.75