Finding the Fourth Proportional to 74,551.98, 102,919.83 and 57,517.98

Step by Step Solution

1. Step 1: Write the proportion equation
   74,551.98 : 102,919.83 = 57,517.98 : x
2. Step 2: Convert to fraction form
   74,551.98/102,919.83 = 57,517.98/x
3. Step 3: Cross multiply
   74,551.98x = 102,919.83 × 57,517.98
4. Step 4: Simplify right side
   74,551.98x = 5,919,740,723.54
5. Step 5: Solve for x
   x = 5,919,740,723.54/74,551.98
6. Step 6: Final answer
   x = 79,404.21