Finding the Fourth Proportional to 13,158.84, 18,164.32 and 8,907.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,158.84 : 18,164.32 = 8,907.82 : x
2. Step 2: Convert to fraction form
   13,158.84/18,164.32 = 8,907.82/x
3. Step 3: Cross multiply
   13,158.84x = 18,164.32 × 8,907.82
4. Step 4: Simplify right side
   13,158.84x = 161,804,492.98
5. Step 5: Solve for x
   x = 161,804,492.98/13,158.84
6. Step 6: Final answer
   x = 12,296.26