Finding the Fourth Proportional to 14,220.48, 21,328.56 and 5,459.52

Step by Step Solution

1. Step 1: Write the proportion equation
   14,220.48 : 21,328.56 = 5,459.52 : x
2. Step 2: Convert to fraction form
   14,220.48/21,328.56 = 5,459.52/x
3. Step 3: Cross multiply
   14,220.48x = 21,328.56 × 5,459.52
4. Step 4: Simplify right side
   14,220.48x = 116,443,699.89
5. Step 5: Solve for x
   x = 116,443,699.89/14,220.48
6. Step 6: Final answer
   x = 8,188.45