Finding the Fourth Proportional to 13,155.01, 18,152.96 and 7,185.41

Step by Step Solution

1. Step 1: Write the proportion equation
   13,155.01 : 18,152.96 = 7,185.41 : x
2. Step 2: Convert to fraction form
   13,155.01/18,152.96 = 7,185.41/x
3. Step 3: Cross multiply
   13,155.01x = 18,152.96 × 7,185.41
4. Step 4: Simplify right side
   13,155.01x = 130,436,451.33
5. Step 5: Solve for x
   x = 130,436,451.33/13,155.01
6. Step 6: Final answer
   x = 9,915.35