Finding the Fourth Proportional to 7,308.98, 10,074.54 and 5,712.81

Step by Step Solution

1. Step 1: Write the proportion equation
   7,308.98 : 10,074.54 = 5,712.81 : x
2. Step 2: Convert to fraction form
   7,308.98/10,074.54 = 5,712.81/x
3. Step 3: Cross multiply
   7,308.98x = 10,074.54 × 5,712.81
4. Step 4: Simplify right side
   7,308.98x = 57,553,932.86
5. Step 5: Solve for x
   x = 57,553,932.86/7,308.98
6. Step 6: Final answer
   x = 7,874.41