Finding the Fourth Proportional to 5,552.31, 7,649.16 and 3,870.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,552.31 : 7,649.16 = 3,870.69 : x
2. Step 2: Convert to fraction form
   5,552.31/7,649.16 = 3,870.69/x
3. Step 3: Cross multiply
   5,552.31x = 7,649.16 × 3,870.69
4. Step 4: Simplify right side
   5,552.31x = 29,607,527.12
5. Step 5: Solve for x
   x = 29,607,527.12/5,552.31
6. Step 6: Final answer
   x = 5,332.47