Finding the Fourth Proportional to 12,784.69, 19,170.54 and 5,853.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,784.69 : 19,170.54 = 5,853.25 : x
2. Step 2: Convert to fraction form
   12,784.69/19,170.54 = 5,853.25/x
3. Step 3: Cross multiply
   12,784.69x = 19,170.54 × 5,853.25
4. Step 4: Simplify right side
   12,784.69x = 112,209,963.26
5. Step 5: Solve for x
   x = 112,209,963.26/12,784.69
6. Step 6: Final answer
   x = 8,776.90