Finding the Fourth Proportional to 13,164.63, 18,167.61 and 7,575.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,164.63 : 18,167.61 = 7,575.63 : x
2. Step 2: Convert to fraction form
   13,164.63/18,167.61 = 7,575.63/x
3. Step 3: Cross multiply
   13,164.63x = 18,167.61 × 7,575.63
4. Step 4: Simplify right side
   13,164.63x = 137,631,091.34
5. Step 5: Solve for x
   x = 137,631,091.34/13,164.63
6. Step 6: Final answer
   x = 10,454.61