Finding the Fourth Proportional to 14,412.32, 21,608.88 and 5,177.12

Step by Step Solution

1. Step 1: Write the proportion equation
   14,412.32 : 21,608.88 = 5,177.12 : x
2. Step 2: Convert to fraction form
   14,412.32/21,608.88 = 5,177.12/x
3. Step 3: Cross multiply
   14,412.32x = 21,608.88 × 5,177.12
4. Step 4: Simplify right side
   14,412.32x = 111,871,764.83
5. Step 5: Solve for x
   x = 111,871,764.83/14,412.32
6. Step 6: Final answer
   x = 7,762.23