Finding the Fourth Proportional to 51,019.34, 76,561.41 and 19,854.86

Step by Step Solution

1. Step 1: Write the proportion equation
   51,019.34 : 76,561.41 = 19,854.86 : x
2. Step 2: Convert to fraction form
   51,019.34/76,561.41 = 19,854.86/x
3. Step 3: Cross multiply
   51,019.34x = 76,561.41 × 19,854.86
4. Step 4: Simplify right side
   51,019.34x = 1,520,116,076.95
5. Step 5: Solve for x
   x = 1,520,116,076.95/51,019.34
6. Step 6: Final answer
   x = 29,794.90