Finding the Fourth Proportional to 7,801.33, 10,770.60 and 5,078.45

Step by Step Solution

1. Step 1: Write the proportion equation
   7,801.33 : 10,770.60 = 5,078.45 : x
2. Step 2: Convert to fraction form
   7,801.33/10,770.60 = 5,078.45/x
3. Step 3: Cross multiply
   7,801.33x = 10,770.60 × 5,078.45
4. Step 4: Simplify right side
   7,801.33x = 54,697,899.72
5. Step 5: Solve for x
   x = 54,697,899.72/7,801.33
6. Step 6: Final answer
   x = 7,011.36