Finding the Fourth Proportional to 6,472.64, 8,931.12 and 3,678.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,472.64 : 8,931.12 = 3,678.72 : x
2. Step 2: Convert to fraction form
   6,472.64/8,931.12 = 3,678.72/x
3. Step 3: Cross multiply
   6,472.64x = 8,931.12 × 3,678.72
4. Step 4: Simplify right side
   6,472.64x = 32,855,089.77
5. Step 5: Solve for x
   x = 32,855,089.77/6,472.64
6. Step 6: Final answer
   x = 5,076.00