Finding the Fourth Proportional to 7,752.38, 10,698.23 and 4,215.60

Step by Step Solution

1. Step 1: Write the proportion equation
   7,752.38 : 10,698.23 = 4,215.60 : x
2. Step 2: Convert to fraction form
   7,752.38/10,698.23 = 4,215.60/x
3. Step 3: Cross multiply
   7,752.38x = 10,698.23 × 4,215.60
4. Step 4: Simplify right side
   7,752.38x = 45,099,458.39
5. Step 5: Solve for x
   x = 45,099,458.39/7,752.38
6. Step 6: Final answer
   x = 5,817.50