Finding the Fourth Proportional to 5,145.42, 7,095.60 and 4,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,145.42 : 7,095.60 = 4,147.50 : x
2. Step 2: Convert to fraction form
   5,145.42/7,095.60 = 4,147.50/x
3. Step 3: Cross multiply
   5,145.42x = 7,095.60 × 4,147.50
4. Step 4: Simplify right side
   5,145.42x = 29,429,001
5. Step 5: Solve for x
   x = 29,429,001/5,145.42
6. Step 6: Final answer
   x = 5,719.46