Finding the Fourth Proportional to 11,892.04, 16,411.42 and 7,175.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,892.04 : 16,411.42 = 7,175.40 : x
2. Step 2: Convert to fraction form
   11,892.04/16,411.42 = 7,175.40/x
3. Step 3: Cross multiply
   11,892.04x = 16,411.42 × 7,175.40
4. Step 4: Simplify right side
   11,892.04x = 117,758,503.07
5. Step 5: Solve for x
   x = 117,758,503.07/11,892.04
6. Step 6: Final answer
   x = 9,902.30