Finding the Fourth Proportional to 54,081.62, 80,925.07 and 31,905.62

Step by Step Solution

1. Step 1: Write the proportion equation
   54,081.62 : 80,925.07 = 31,905.62 : x
2. Step 2: Convert to fraction form
   54,081.62/80,925.07 = 31,905.62/x
3. Step 3: Cross multiply
   54,081.62x = 80,925.07 × 31,905.62
4. Step 4: Simplify right side
   54,081.62x = 2,581,964,531.89
5. Step 5: Solve for x
   x = 2,581,964,531.89/54,081.62
6. Step 6: Final answer
   x = 47,742.00