Finding the Fourth Proportional to 9,036.13, 12,469.47 and 4,947.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,036.13 : 12,469.47 = 4,947.91 : x
2. Step 2: Convert to fraction form
   9,036.13/12,469.47 = 4,947.91/x
3. Step 3: Cross multiply
   9,036.13x = 12,469.47 × 4,947.91
4. Step 4: Simplify right side
   9,036.13x = 61,697,815.31
5. Step 5: Solve for x
   x = 61,697,815.31/9,036.13
6. Step 6: Final answer
   x = 6,827.90