Finding the Fourth Proportional to 13,164.05, 18,166.52 and 7,498.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,164.05 : 18,166.52 = 7,498.72 : x
2. Step 2: Convert to fraction form
   13,164.05/18,166.52 = 7,498.72/x
3. Step 3: Cross multiply
   13,164.05x = 18,166.52 × 7,498.72
4. Step 4: Simplify right side
   13,164.05x = 136,225,609.36
5. Step 5: Solve for x
   x = 136,225,609.36/13,164.05
6. Step 6: Final answer
   x = 10,348.31