Finding the Fourth Proportional to 14,444, 19,932.78 and 7,820

Step by Step Solution

1. Step 1: Write the proportion equation
   14,444 : 19,932.78 = 7,820 : x
2. Step 2: Convert to fraction form
   14,444/19,932.78 = 7,820/x
3. Step 3: Cross multiply
   14,444x = 19,932.78 × 7,820
4. Step 4: Simplify right side
   14,444x = 155,874,339.60
5. Step 5: Solve for x
   x = 155,874,339.60/14,444
6. Step 6: Final answer
   x = 10,791.63