Finding the Fourth Proportional to 8,499.38, 11,729.86 and 4,774.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.38 : 11,729.86 = 4,774.10 : x
2. Step 2: Convert to fraction form
   8,499.38/11,729.86 = 4,774.10/x
3. Step 3: Cross multiply
   8,499.38x = 11,729.86 × 4,774.10
4. Step 4: Simplify right side
   8,499.38x = 55,999,454.04
5. Step 5: Solve for x
   x = 55,999,454.04/8,499.38
6. Step 6: Final answer
   x = 6,588.66