Finding the Fourth Proportional to 77,950.42, 107,499.82 and 51,083.17

Step by Step Solution

1. Step 1: Write the proportion equation
   77,950.42 : 107,499.82 = 51,083.17 : x
2. Step 2: Convert to fraction form
   77,950.42/107,499.82 = 51,083.17/x
3. Step 3: Cross multiply
   77,950.42x = 107,499.82 × 51,083.17
4. Step 4: Simplify right side
   77,950.42x = 5,491,431,580.03
5. Step 5: Solve for x
   x = 5,491,431,580.03/77,950.42
6. Step 6: Final answer
   x = 70,447.75