Finding the Fourth Proportional to 13,901.62, 19,185.60 and 7,934.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,901.62 : 19,185.60 = 7,934.18 : x
2. Step 2: Convert to fraction form
   13,901.62/19,185.60 = 7,934.18/x
3. Step 3: Cross multiply
   13,901.62x = 19,185.60 × 7,934.18
4. Step 4: Simplify right side
   13,901.62x = 152,221,927.72
5. Step 5: Solve for x
   x = 152,221,927.72/13,901.62
6. Step 6: Final answer
   x = 10,949.95