Finding the Fourth Proportional to 13,404.02, 18,485.43 and 8,368.70

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.02 : 18,485.43 = 8,368.70 : x
2. Step 2: Convert to fraction form
   13,404.02/18,485.43 = 8,368.70/x
3. Step 3: Cross multiply
   13,404.02x = 18,485.43 × 8,368.70
4. Step 4: Simplify right side
   13,404.02x = 154,699,018.04
5. Step 5: Solve for x
   x = 154,699,018.04/13,404.02
6. Step 6: Final answer
   x = 11,541.24