Finding the Fourth Proportional to 90,019.46, 124,237.42 and 54,227.54

Step by Step Solution

1. Step 1: Write the proportion equation
   90,019.46 : 124,237.42 = 54,227.54 : x
2. Step 2: Convert to fraction form
   90,019.46/124,237.42 = 54,227.54/x
3. Step 3: Cross multiply
   90,019.46x = 124,237.42 × 54,227.54
4. Step 4: Simplify right side
   90,019.46x = 6,737,089,662.55
5. Step 5: Solve for x
   x = 6,737,089,662.55/90,019.46
6. Step 6: Final answer
   x = 74,840.37