Finding the Fourth Proportional to 7,820.75, 10,784.55 and 5,433.43

Step by Step Solution

1. Step 1: Write the proportion equation
   7,820.75 : 10,784.55 = 5,433.43 : x
2. Step 2: Convert to fraction form
   7,820.75/10,784.55 = 5,433.43/x
3. Step 3: Cross multiply
   7,820.75x = 10,784.55 × 5,433.43
4. Step 4: Simplify right side
   7,820.75x = 58,597,084.40
5. Step 5: Solve for x
   x = 58,597,084.40/7,820.75
6. Step 6: Final answer
   x = 7,492.51