Finding the Fourth Proportional to 13,164.54, 18,166.86 and 7,196.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,164.54 : 18,166.86 = 7,196.10 : x
2. Step 2: Convert to fraction form
   13,164.54/18,166.86 = 7,196.10/x
3. Step 3: Cross multiply
   13,164.54x = 18,166.86 × 7,196.10
4. Step 4: Simplify right side
   13,164.54x = 130,730,541.25
5. Step 5: Solve for x
   x = 130,730,541.25/13,164.54
6. Step 6: Final answer
   x = 9,930.51