Finding the Fourth Proportional to 12,783.38, 19,158.83 and 5,755.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,783.38 : 19,158.83 = 5,755.86 : x
2. Step 2: Convert to fraction form
   12,783.38/19,158.83 = 5,755.86/x
3. Step 3: Cross multiply
   12,783.38x = 19,158.83 × 5,755.86
4. Step 4: Simplify right side
   12,783.38x = 110,275,543.24
5. Step 5: Solve for x
   x = 110,275,543.24/12,783.38
6. Step 6: Final answer
   x = 8,626.48