Finding the Fourth Proportional to 65,079.82, 89,755.58 and 51,629.76

Step by Step Solution

1. Step 1: Write the proportion equation
   65,079.82 : 89,755.58 = 51,629.76 : x
2. Step 2: Convert to fraction form
   65,079.82/89,755.58 = 51,629.76/x
3. Step 3: Cross multiply
   65,079.82x = 89,755.58 × 51,629.76
4. Step 4: Simplify right side
   65,079.82x = 4,634,059,054.06
5. Step 5: Solve for x
   x = 4,634,059,054.06/65,079.82
6. Step 6: Final answer
   x = 71,205.78