Finding the Fourth Proportional to 54,019.56, 74,547.67 and 31,359.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,019.56 : 74,547.67 = 31,359.50 : x
2. Step 2: Convert to fraction form
   54,019.56/74,547.67 = 31,359.50/x
3. Step 3: Cross multiply
   54,019.56x = 74,547.67 × 31,359.50
4. Step 4: Simplify right side
   54,019.56x = 2,337,777,657.37
5. Step 5: Solve for x
   x = 2,337,777,657.37/54,019.56
6. Step 6: Final answer
   x = 43,276.50