Finding the Fourth Proportional to 54,019.40, 74,516.82 and 31,659.08

Step by Step Solution

1. Step 1: Write the proportion equation
   54,019.40 : 74,516.82 = 31,659.08 : x
2. Step 2: Convert to fraction form
   54,019.40/74,516.82 = 31,659.08/x
3. Step 3: Cross multiply
   54,019.40x = 74,516.82 × 31,659.08
4. Step 4: Simplify right side
   54,019.40x = 2,359,133,965.73
5. Step 5: Solve for x
   x = 2,359,133,965.73/54,019.40
6. Step 6: Final answer
   x = 43,671.98