Finding the Fourth Proportional to 14,340.50, 21,511.56 and 5,106.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,340.50 : 21,511.56 = 5,106.50 : x
2. Step 2: Convert to fraction form
   14,340.50/21,511.56 = 5,106.50/x
3. Step 3: Cross multiply
   14,340.50x = 21,511.56 × 5,106.50
4. Step 4: Simplify right side
   14,340.50x = 109,848,781.14
5. Step 5: Solve for x
   x = 109,848,781.14/14,340.50
6. Step 6: Final answer
   x = 7,660.04