Finding the Fourth Proportional to 5,185.50, 7,153.53 and 3,507.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,185.50 : 7,153.53 = 3,507.50 : x
2. Step 2: Convert to fraction form
   5,185.50/7,153.53 = 3,507.50/x
3. Step 3: Cross multiply
   5,185.50x = 7,153.53 × 3,507.50
4. Step 4: Simplify right side
   5,185.50x = 25,091,006.48
5. Step 5: Solve for x
   x = 25,091,006.48/5,185.50
6. Step 6: Final answer
   x = 4,838.69