Finding the Fourth Proportional to 9,475.34, 13,074.62 and 5,387

Step by Step Solution

1. Step 1: Write the proportion equation
   9,475.34 : 13,074.62 = 5,387 : x
2. Step 2: Convert to fraction form
   9,475.34/13,074.62 = 5,387/x
3. Step 3: Cross multiply
   9,475.34x = 13,074.62 × 5,387
4. Step 4: Simplify right side
   9,475.34x = 70,432,977.94
5. Step 5: Solve for x
   x = 70,432,977.94/9,475.34
6. Step 6: Final answer
   x = 7,433.29