Finding the Fourth Proportional to 19,981.50, 29,973.69 and 7,669.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,981.50 : 29,973.69 = 7,669.50 : x
2. Step 2: Convert to fraction form
   19,981.50/29,973.69 = 7,669.50/x
3. Step 3: Cross multiply
   19,981.50x = 29,973.69 × 7,669.50
4. Step 4: Simplify right side
   19,981.50x = 229,883,215.46
5. Step 5: Solve for x
   x = 229,883,215.46/19,981.50
6. Step 6: Final answer
   x = 11,504.80