Finding the Fourth Proportional to 8,178.17, 12,267.33 and 3,495.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,178.17 : 12,267.33 = 3,495.25 : x
2. Step 2: Convert to fraction form
   8,178.17/12,267.33 = 3,495.25/x
3. Step 3: Cross multiply
   8,178.17x = 12,267.33 × 3,495.25
4. Step 4: Simplify right side
   8,178.17x = 42,877,385.18
5. Step 5: Solve for x
   x = 42,877,385.18/8,178.17
6. Step 6: Final answer
   x = 5,242.91