Finding the Fourth Proportional to 54,280, 74,910.72 and 31,928.32

Step by Step Solution

1. Step 1: Write the proportion equation
   54,280 : 74,910.72 = 31,928.32 : x
2. Step 2: Convert to fraction form
   54,280/74,910.72 = 31,928.32/x
3. Step 3: Cross multiply
   54,280x = 74,910.72 × 31,928.32
4. Step 4: Simplify right side
   54,280x = 2,391,773,439.59
5. Step 5: Solve for x
   x = 2,391,773,439.59/54,280
6. Step 6: Final answer
   x = 44,063.62