Finding the Fourth Proportional to 10,255.45, 14,151.30 and 5,779.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,255.45 : 14,151.30 = 5,779.06 : x
2. Step 2: Convert to fraction form
   10,255.45/14,151.30 = 5,779.06/x
3. Step 3: Cross multiply
   10,255.45x = 14,151.30 × 5,779.06
4. Step 4: Simplify right side
   10,255.45x = 81,781,211.78
5. Step 5: Solve for x
   x = 81,781,211.78/10,255.45
6. Step 6: Final answer
   x = 7,974.41