Finding the Fourth Proportional to 5,697.47, 7,870.97 and 5,653.73

Step by Step Solution

1. Step 1: Write the proportion equation
   5,697.47 : 7,870.97 = 5,653.73 : x
2. Step 2: Convert to fraction form
   5,697.47/7,870.97 = 5,653.73/x
3. Step 3: Cross multiply
   5,697.47x = 7,870.97 × 5,653.73
4. Step 4: Simplify right side
   5,697.47x = 44,500,339.22
5. Step 5: Solve for x
   x = 44,500,339.22/5,697.47
6. Step 6: Final answer
   x = 7,810.54