Finding the Fourth Proportional to 5,333.60, 8,017.68 and 5,307.68

Step by Step Solution

1. Step 1: Write the proportion equation
   5,333.60 : 8,017.68 = 5,307.68 : x
2. Step 2: Convert to fraction form
   5,333.60/8,017.68 = 5,307.68/x
3. Step 3: Cross multiply
   5,333.60x = 8,017.68 × 5,307.68
4. Step 4: Simplify right side
   5,333.60x = 42,555,279.78
5. Step 5: Solve for x
   x = 42,555,279.78/5,333.60
6. Step 6: Final answer
   x = 7,978.72