Finding the Fourth Proportional to 7,875.43, 10,864.58 and 5,322.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,875.43 : 10,864.58 = 5,322.38 : x
2. Step 2: Convert to fraction form
   7,875.43/10,864.58 = 5,322.38/x
3. Step 3: Cross multiply
   7,875.43x = 10,864.58 × 5,322.38
4. Step 4: Simplify right side
   7,875.43x = 57,825,372.30
5. Step 5: Solve for x
   x = 57,825,372.30/7,875.43
6. Step 6: Final answer
   x = 7,342.51