Finding the Fourth Proportional to 10,875.64, 16,314.54 and 3,478.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,875.64 : 16,314.54 = 3,478.24 : x
2. Step 2: Convert to fraction form
   10,875.64/16,314.54 = 3,478.24/x
3. Step 3: Cross multiply
   10,875.64x = 16,314.54 × 3,478.24
4. Step 4: Simplify right side
   10,875.64x = 56,745,885.61
5. Step 5: Solve for x
   x = 56,745,885.61/10,875.64
6. Step 6: Final answer
   x = 5,217.71