Finding the Fourth Proportional to 21,813, 32,698.69 and 7,011.51

Step by Step Solution

1. Step 1: Write the proportion equation
   21,813 : 32,698.69 = 7,011.51 : x
2. Step 2: Convert to fraction form
   21,813/32,698.69 = 7,011.51/x
3. Step 3: Cross multiply
   21,813x = 32,698.69 × 7,011.51
4. Step 4: Simplify right side
   21,813x = 229,267,191.92
5. Step 5: Solve for x
   x = 229,267,191.92/21,813
6. Step 6: Final answer
   x = 10,510.58