Finding the Fourth Proportional to 14,468.51, 21,680.42 and 9,770.10

Step by Step Solution

1. Step 1: Write the proportion equation
   14,468.51 : 21,680.42 = 9,770.10 : x
2. Step 2: Convert to fraction form
   14,468.51/21,680.42 = 9,770.10/x
3. Step 3: Cross multiply
   14,468.51x = 21,680.42 × 9,770.10
4. Step 4: Simplify right side
   14,468.51x = 211,819,822.59
5. Step 5: Solve for x
   x = 211,819,822.59/14,468.51
6. Step 6: Final answer
   x = 14,640.06