Finding the Fourth Proportional to 21,868.43, 32,803.67 and 7,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,868.43 : 32,803.67 = 7,078.50 : x
2. Step 2: Convert to fraction form
   21,868.43/32,803.67 = 7,078.50/x
3. Step 3: Cross multiply
   21,868.43x = 32,803.67 × 7,078.50
4. Step 4: Simplify right side
   21,868.43x = 232,200,795.79
5. Step 5: Solve for x
   x = 232,200,795.79/21,868.43
6. Step 6: Final answer
   x = 10,618.09