Finding the Fourth Proportional to 14,130.42, 19,500.30 and 7,843.20

Step by Step Solution

1. Step 1: Write the proportion equation
   14,130.42 : 19,500.30 = 7,843.20 : x
2. Step 2: Convert to fraction form
   14,130.42/19,500.30 = 7,843.20/x
3. Step 3: Cross multiply
   14,130.42x = 19,500.30 × 7,843.20
4. Step 4: Simplify right side
   14,130.42x = 152,944,752.96
5. Step 5: Solve for x
   x = 152,944,752.96/14,130.42
6. Step 6: Final answer
   x = 10,823.79