Finding the Fourth Proportional to 9,945.83, 13,725.27 and 5,469.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.83 : 13,725.27 = 5,469.86 : x
2. Step 2: Convert to fraction form
   9,945.83/13,725.27 = 5,469.86/x
3. Step 3: Cross multiply
   9,945.83x = 13,725.27 × 5,469.86
4. Step 4: Simplify right side
   9,945.83x = 75,075,305.36
5. Step 5: Solve for x
   x = 75,075,305.36/9,945.83
6. Step 6: Final answer
   x = 7,548.42