Finding the Fourth Proportional to 14,605.21, 21,911.31 and 5,116.37

Step by Step Solution

1. Step 1: Write the proportion equation
   14,605.21 : 21,911.31 = 5,116.37 : x
2. Step 2: Convert to fraction form
   14,605.21/21,911.31 = 5,116.37/x
3. Step 3: Cross multiply
   14,605.21x = 21,911.31 × 5,116.37
4. Step 4: Simplify right side
   14,605.21x = 112,106,259.59
5. Step 5: Solve for x
   x = 112,106,259.59/14,605.21
6. Step 6: Final answer
   x = 7,675.77