Finding the Fourth Proportional to 54,086.39, 74,627.23 and 31,114.80

Step by Step Solution

1. Step 1: Write the proportion equation
   54,086.39 : 74,627.23 = 31,114.80 : x
2. Step 2: Convert to fraction form
   54,086.39/74,627.23 = 31,114.80/x
3. Step 3: Cross multiply
   54,086.39x = 74,627.23 × 31,114.80
4. Step 4: Simplify right side
   54,086.39x = 2,322,011,495.85
5. Step 5: Solve for x
   x = 2,322,011,495.85/54,086.39
6. Step 6: Final answer
   x = 42,931.53