Finding the Fourth Proportional to 6,484.59, 8,939.61 and 5,485.86

Step by Step Solution

1. Step 1: Write the proportion equation
   6,484.59 : 8,939.61 = 5,485.86 : x
2. Step 2: Convert to fraction form
   6,484.59/8,939.61 = 5,485.86/x
3. Step 3: Cross multiply
   6,484.59x = 8,939.61 × 5,485.86
4. Step 4: Simplify right side
   6,484.59x = 49,041,448.91
5. Step 5: Solve for x
   x = 49,041,448.91/6,484.59
6. Step 6: Final answer
   x = 7,562.77