Finding the Fourth Proportional to 8,970.50, 12,369.92 and 5,432.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,970.50 : 12,369.92 = 5,432.42 : x
2. Step 2: Convert to fraction form
   8,970.50/12,369.92 = 5,432.42/x
3. Step 3: Cross multiply
   8,970.50x = 12,369.92 × 5,432.42
4. Step 4: Simplify right side
   8,970.50x = 67,198,600.81
5. Step 5: Solve for x
   x = 67,198,600.81/8,970.50
6. Step 6: Final answer
   x = 7,491.07