Finding the Fourth Proportional to 10,980.92, 16,473 and 3,188.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,980.92 : 16,473 = 3,188.72 : x
2. Step 2: Convert to fraction form
   10,980.92/16,473 = 3,188.72/x
3. Step 3: Cross multiply
   10,980.92x = 16,473 × 3,188.72
4. Step 4: Simplify right side
   10,980.92x = 52,527,784.56
5. Step 5: Solve for x
   x = 52,527,784.56/10,980.92
6. Step 6: Final answer
   x = 4,783.55