Finding the Fourth Proportional to 13,164.31, 18,166.24 and 7,499.37

Step by Step Solution

1. Step 1: Write the proportion equation
   13,164.31 : 18,166.24 = 7,499.37 : x
2. Step 2: Convert to fraction form
   13,164.31/18,166.24 = 7,499.37/x
3. Step 3: Cross multiply
   13,164.31x = 18,166.24 × 7,499.37
4. Step 4: Simplify right side
   13,164.31x = 136,235,355.27
5. Step 5: Solve for x
   x = 136,235,355.27/13,164.31
6. Step 6: Final answer
   x = 10,348.84