Finding the Fourth Proportional to 10,790.12, 16,191.36 and 4,946.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,790.12 : 16,191.36 = 4,946.78 : x
2. Step 2: Convert to fraction form
   10,790.12/16,191.36 = 4,946.78/x
3. Step 3: Cross multiply
   10,790.12x = 16,191.36 × 4,946.78
4. Step 4: Simplify right side
   10,790.12x = 80,095,095.82
5. Step 5: Solve for x
   x = 80,095,095.82/10,790.12
6. Step 6: Final answer
   x = 7,423.00