Finding the Fourth Proportional to 21,812.58, 32,715.72 and 7,019.58

Step by Step Solution

1. Step 1: Write the proportion equation
   21,812.58 : 32,715.72 = 7,019.58 : x
2. Step 2: Convert to fraction form
   21,812.58/32,715.72 = 7,019.58/x
3. Step 3: Cross multiply
   21,812.58x = 32,715.72 × 7,019.58
4. Step 4: Simplify right side
   21,812.58x = 229,650,613.80
5. Step 5: Solve for x
   x = 229,650,613.80/21,812.58
6. Step 6: Final answer
   x = 10,528.36