Finding the Fourth Proportional to 7,017.18, 9,688.59 and 4,365.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,017.18 : 9,688.59 = 4,365.78 : x
2. Step 2: Convert to fraction form
   7,017.18/9,688.59 = 4,365.78/x
3. Step 3: Cross multiply
   7,017.18x = 9,688.59 × 4,365.78
4. Step 4: Simplify right side
   7,017.18x = 42,298,252.45
5. Step 5: Solve for x
   x = 42,298,252.45/7,017.18
6. Step 6: Final answer
   x = 6,027.81