Finding the Fourth Proportional to 10,895.50, 16,345.68 and 3,970

Step by Step Solution

1. Step 1: Write the proportion equation
   10,895.50 : 16,345.68 = 3,970 : x
2. Step 2: Convert to fraction form
   10,895.50/16,345.68 = 3,970/x
3. Step 3: Cross multiply
   10,895.50x = 16,345.68 × 3,970
4. Step 4: Simplify right side
   10,895.50x = 64,892,349.60
5. Step 5: Solve for x
   x = 64,892,349.60/10,895.50
6. Step 6: Final answer
   x = 5,955.89