Finding the Fourth Proportional to 6,499.78, 8,973.01 and 4,506.87

Step by Step Solution

1. Step 1: Write the proportion equation
   6,499.78 : 8,973.01 = 4,506.87 : x
2. Step 2: Convert to fraction form
   6,499.78/8,973.01 = 4,506.87/x
3. Step 3: Cross multiply
   6,499.78x = 8,973.01 × 4,506.87
4. Step 4: Simplify right side
   6,499.78x = 40,440,228.86
5. Step 5: Solve for x
   x = 40,440,228.86/6,499.78
6. Step 6: Final answer
   x = 6,221.79