Finding the Fourth Proportional to 7,752.09, 10,698.17 and 4,215.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,752.09 : 10,698.17 = 4,215.57 : x
2. Step 2: Convert to fraction form
   7,752.09/10,698.17 = 4,215.57/x
3. Step 3: Cross multiply
   7,752.09x = 10,698.17 × 4,215.57
4. Step 4: Simplify right side
   7,752.09x = 45,098,884.51
5. Step 5: Solve for x
   x = 45,098,884.51/7,752.09
6. Step 6: Final answer
   x = 5,817.64