Finding the Fourth Proportional to 7,823.99, 10,790.28 and 7,784.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,823.99 : 10,790.28 = 7,784.52 : x
2. Step 2: Convert to fraction form
   7,823.99/10,790.28 = 7,784.52/x
3. Step 3: Cross multiply
   7,823.99x = 10,790.28 × 7,784.52
4. Step 4: Simplify right side
   7,823.99x = 83,997,209.88
5. Step 5: Solve for x
   x = 83,997,209.88/7,823.99
6. Step 6: Final answer
   x = 10,735.85