Finding the Fourth Proportional to 13,902.03, 19,180.04 and 7,929.41

Step by Step Solution

1. Step 1: Write the proportion equation
   13,902.03 : 19,180.04 = 7,929.41 : x
2. Step 2: Convert to fraction form
   13,902.03/19,180.04 = 7,929.41/x
3. Step 3: Cross multiply
   13,902.03x = 19,180.04 × 7,929.41
4. Step 4: Simplify right side
   13,902.03x = 152,086,265.43
5. Step 5: Solve for x
   x = 152,086,265.43/13,902.03
6. Step 6: Final answer
   x = 10,939.86