Finding the Fourth Proportional to 6,535.78, 9,807.18 and 4,345.54

Step by Step Solution

1. Step 1: Write the proportion equation
   6,535.78 : 9,807.18 = 4,345.54 : x
2. Step 2: Convert to fraction form
   6,535.78/9,807.18 = 4,345.54/x
3. Step 3: Cross multiply
   6,535.78x = 9,807.18 × 4,345.54
4. Step 4: Simplify right side
   6,535.78x = 42,617,492.98
5. Step 5: Solve for x
   x = 42,617,492.98/6,535.78
6. Step 6: Final answer
   x = 6,520.64