Finding the Fourth Proportional to 9,972.37, 13,761.69 and 5,435.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,972.37 : 13,761.69 = 5,435.09 : x
2. Step 2: Convert to fraction form
   9,972.37/13,761.69 = 5,435.09/x
3. Step 3: Cross multiply
   9,972.37x = 13,761.69 × 5,435.09
4. Step 4: Simplify right side
   9,972.37x = 74,796,023.70
5. Step 5: Solve for x
   x = 74,796,023.70/9,972.37
6. Step 6: Final answer
   x = 7,500.33