Finding the Fourth Proportional to 13,164.51, 18,164.82 and 7,499.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,164.51 : 18,164.82 = 7,499.34 : x
2. Step 2: Convert to fraction form
   13,164.51/18,164.82 = 7,499.34/x
3. Step 3: Cross multiply
   13,164.51x = 18,164.82 × 7,499.34
4. Step 4: Simplify right side
   13,164.51x = 136,224,161.22
5. Step 5: Solve for x
   x = 136,224,161.22/13,164.51
6. Step 6: Final answer
   x = 10,347.83