Finding the Fourth Proportional to 51,042.83, 76,558.17 and 13,605.71

Step by Step Solution

1. Step 1: Write the proportion equation
   51,042.83 : 76,558.17 = 13,605.71 : x
2. Step 2: Convert to fraction form
   51,042.83/76,558.17 = 13,605.71/x
3. Step 3: Cross multiply
   51,042.83x = 76,558.17 × 13,605.71
4. Step 4: Simplify right side
   51,042.83x = 1,041,628,259.15
5. Step 5: Solve for x
   x = 1,041,628,259.15/51,042.83
6. Step 6: Final answer
   x = 20,406.95