Finding the Fourth Proportional to 14,651.98, 21,977.66 and 3,558.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,651.98 : 21,977.66 = 3,558.72 : x
2. Step 2: Convert to fraction form
   14,651.98/21,977.66 = 3,558.72/x
3. Step 3: Cross multiply
   14,651.98x = 21,977.66 × 3,558.72
4. Step 4: Simplify right side
   14,651.98x = 78,212,338.20
5. Step 5: Solve for x
   x = 78,212,338.20/14,651.98
6. Step 6: Final answer
   x = 5,338.00