Finding the Fourth Proportional to 7,752.16, 10,697.90 and 4,215.37

Step by Step Solution

1. Step 1: Write the proportion equation
   7,752.16 : 10,697.90 = 4,215.37 : x
2. Step 2: Convert to fraction form
   7,752.16/10,697.90 = 4,215.37/x
3. Step 3: Cross multiply
   7,752.16x = 10,697.90 × 4,215.37
4. Step 4: Simplify right side
   7,752.16x = 45,095,590.52
5. Step 5: Solve for x
   x = 45,095,590.52/7,752.16
6. Step 6: Final answer
   x = 5,817.17