Finding the Fourth Proportional to 14,059.58, 21,083.15 and 7,484.20

Step by Step Solution

1. Step 1: Write the proportion equation
   14,059.58 : 21,083.15 = 7,484.20 : x
2. Step 2: Convert to fraction form
   14,059.58/21,083.15 = 7,484.20/x
3. Step 3: Cross multiply
   14,059.58x = 21,083.15 × 7,484.20
4. Step 4: Simplify right side
   14,059.58x = 157,790,477.23
5. Step 5: Solve for x
   x = 157,790,477.23/14,059.58
6. Step 6: Final answer
   x = 11,222.99