Finding the Fourth Proportional to 8,464.71, 12,700.11 and 3,784.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,464.71 : 12,700.11 = 3,784.34 : x
2. Step 2: Convert to fraction form
   8,464.71/12,700.11 = 3,784.34/x
3. Step 3: Cross multiply
   8,464.71x = 12,700.11 × 3,784.34
4. Step 4: Simplify right side
   8,464.71x = 48,061,470.78
5. Step 5: Solve for x
   x = 48,061,470.78/8,464.71
6. Step 6: Final answer
   x = 5,677.86