Finding the Fourth Proportional to 7,847.31, 10,836.23 and 5,338.74

Step by Step Solution

1. Step 1: Write the proportion equation
   7,847.31 : 10,836.23 = 5,338.74 : x
2. Step 2: Convert to fraction form
   7,847.31/10,836.23 = 5,338.74/x
3. Step 3: Cross multiply
   7,847.31x = 10,836.23 × 5,338.74
4. Step 4: Simplify right side
   7,847.31x = 57,851,787.86
5. Step 5: Solve for x
   x = 57,851,787.86/7,847.31
6. Step 6: Final answer
   x = 7,372.18