Finding the Fourth Proportional to 8,160.63, 12,179.28 and 7,373.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,160.63 : 12,179.28 = 7,373.31 : x
2. Step 2: Convert to fraction form
   8,160.63/12,179.28 = 7,373.31/x
3. Step 3: Cross multiply
   8,160.63x = 12,179.28 × 7,373.31
4. Step 4: Simplify right side
   8,160.63x = 89,801,607.02
5. Step 5: Solve for x
   x = 89,801,607.02/8,160.63
6. Step 6: Final answer
   x = 11,004.25