Finding the Fourth Proportional to 14,103.96, 21,156.56 and 7,859.24

Step by Step Solution

1. Step 1: Write the proportion equation
   14,103.96 : 21,156.56 = 7,859.24 : x
2. Step 2: Convert to fraction form
   14,103.96/21,156.56 = 7,859.24/x
3. Step 3: Cross multiply
   14,103.96x = 21,156.56 × 7,859.24
4. Step 4: Simplify right side
   14,103.96x = 166,274,482.61
5. Step 5: Solve for x
   x = 166,274,482.61/14,103.96
6. Step 6: Final answer
   x = 11,789.21