Finding the Fourth Proportional to 54,087.53, 74,644.83 and 31,124.39

Step by Step Solution

1. Step 1: Write the proportion equation
   54,087.53 : 74,644.83 = 31,124.39 : x
2. Step 2: Convert to fraction form
   54,087.53/74,644.83 = 31,124.39/x
3. Step 3: Cross multiply
   54,087.53x = 74,644.83 × 31,124.39
4. Step 4: Simplify right side
   54,087.53x = 2,323,274,271.56
5. Step 5: Solve for x
   x = 2,323,274,271.56/54,087.53
6. Step 6: Final answer
   x = 42,953.98