Finding the Fourth Proportional to 74,730.38, 103,156.71 and 54,745.98

Step by Step Solution

1. Step 1: Write the proportion equation
   74,730.38 : 103,156.71 = 54,745.98 : x
2. Step 2: Convert to fraction form
   74,730.38/103,156.71 = 54,745.98/x
3. Step 3: Cross multiply
   74,730.38x = 103,156.71 × 54,745.98
4. Step 4: Simplify right side
   74,730.38x = 5,647,415,182.53
5. Step 5: Solve for x
   x = 5,647,415,182.53/74,730.38
6. Step 6: Final answer
   x = 75,570.55