Finding the Fourth Proportional to 14,428.50, 21,629.79 and 5,192.34

Step by Step Solution

1. Step 1: Write the proportion equation
   14,428.50 : 21,629.79 = 5,192.34 : x
2. Step 2: Convert to fraction form
   14,428.50/21,629.79 = 5,192.34/x
3. Step 3: Cross multiply
   14,428.50x = 21,629.79 × 5,192.34
4. Step 4: Simplify right side
   14,428.50x = 112,309,223.81
5. Step 5: Solve for x
   x = 112,309,223.81/14,428.50
6. Step 6: Final answer
   x = 7,783.85