Finding the Fourth Proportional to 6,146.52, 8,479.78 and 3,784.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,146.52 : 8,479.78 = 3,784.56 : x
2. Step 2: Convert to fraction form
   6,146.52/8,479.78 = 3,784.56/x
3. Step 3: Cross multiply
   6,146.52x = 8,479.78 × 3,784.56
4. Step 4: Simplify right side
   6,146.52x = 32,092,236.20
5. Step 5: Solve for x
   x = 32,092,236.20/6,146.52
6. Step 6: Final answer
   x = 5,221.20