Finding the Fourth Proportional to 7,899.37, 10,902.83 and 5,387.47

Step by Step Solution

1. Step 1: Write the proportion equation
   7,899.37 : 10,902.83 = 5,387.47 : x
2. Step 2: Convert to fraction form
   7,899.37/10,902.83 = 5,387.47/x
3. Step 3: Cross multiply
   7,899.37x = 10,902.83 × 5,387.47
4. Step 4: Simplify right side
   7,899.37x = 58,738,669.54
5. Step 5: Solve for x
   x = 58,738,669.54/7,899.37
6. Step 6: Final answer
   x = 7,435.87