Finding the Fourth Proportional to 10,800.16, 16,178.64 and 4,948.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,800.16 : 16,178.64 = 4,948.72 : x
2. Step 2: Convert to fraction form
   10,800.16/16,178.64 = 4,948.72/x
3. Step 3: Cross multiply
   10,800.16x = 16,178.64 × 4,948.72
4. Step 4: Simplify right side
   10,800.16x = 80,063,559.34
5. Step 5: Solve for x
   x = 80,063,559.34/10,800.16
6. Step 6: Final answer
   x = 7,413.18