Finding the Fourth Proportional to 10,875.87, 16,311.63 and 3,478.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,875.87 : 16,311.63 = 3,478.32 : x
2. Step 2: Convert to fraction form
   10,875.87/16,311.63 = 3,478.32/x
3. Step 3: Cross multiply
   10,875.87x = 16,311.63 × 3,478.32
4. Step 4: Simplify right side
   10,875.87x = 56,737,068.86
5. Step 5: Solve for x
   x = 56,737,068.86/10,875.87
6. Step 6: Final answer
   x = 5,216.78