Finding the Fourth Proportional to 9,783.64, 14,682.72 and 5,404.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,783.64 : 14,682.72 = 5,404.84 : x
2. Step 2: Convert to fraction form
   9,783.64/14,682.72 = 5,404.84/x
3. Step 3: Cross multiply
   9,783.64x = 14,682.72 × 5,404.84
4. Step 4: Simplify right side
   9,783.64x = 79,357,752.36
5. Step 5: Solve for x
   x = 79,357,752.36/9,783.64
6. Step 6: Final answer
   x = 8,111.27