Finding the Fourth Proportional to 14,022.54, 21,031.32 and 5,136

Step by Step Solution

1. Step 1: Write the proportion equation
   14,022.54 : 21,031.32 = 5,136 : x
2. Step 2: Convert to fraction form
   14,022.54/21,031.32 = 5,136/x
3. Step 3: Cross multiply
   14,022.54x = 21,031.32 × 5,136
4. Step 4: Simplify right side
   14,022.54x = 108,016,859.52
5. Step 5: Solve for x
   x = 108,016,859.52/14,022.54
6. Step 6: Final answer
   x = 7,703.09