Finding the Fourth Proportional to 4,947.39, 7,385.72 and 4,774.32

Step by Step Solution

1. Step 1: Write the proportion equation
   4,947.39 : 7,385.72 = 4,774.32 : x
2. Step 2: Convert to fraction form
   4,947.39/7,385.72 = 4,774.32/x
3. Step 3: Cross multiply
   4,947.39x = 7,385.72 × 4,774.32
4. Step 4: Simplify right side
   4,947.39x = 35,261,766.84
5. Step 5: Solve for x
   x = 35,261,766.84/4,947.39
6. Step 6: Final answer
   x = 7,127.35