Finding the Fourth Proportional to 14,485.32, 21,724.20 and 5,124.42

Step by Step Solution

1. Step 1: Write the proportion equation
   14,485.32 : 21,724.20 = 5,124.42 : x
2. Step 2: Convert to fraction form
   14,485.32/21,724.20 = 5,124.42/x
3. Step 3: Cross multiply
   14,485.32x = 21,724.20 × 5,124.42
4. Step 4: Simplify right side
   14,485.32x = 111,323,924.96
5. Step 5: Solve for x
   x = 111,323,924.96/14,485.32
6. Step 6: Final answer
   x = 7,685.29