Finding the Fourth Proportional to 8,402.84, 12,606.72 and 3,472.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,402.84 : 12,606.72 = 3,472.76 : x
2. Step 2: Convert to fraction form
   8,402.84/12,606.72 = 3,472.76/x
3. Step 3: Cross multiply
   8,402.84x = 12,606.72 × 3,472.76
4. Step 4: Simplify right side
   8,402.84x = 43,780,112.95
5. Step 5: Solve for x
   x = 43,780,112.95/8,402.84
6. Step 6: Final answer
   x = 5,210.16