Finding the Fourth Proportional to 9,725.83, 13,420.96 and 5,475.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,725.83 : 13,420.96 = 5,475.56 : x
2. Step 2: Convert to fraction form
   9,725.83/13,420.96 = 5,475.56/x
3. Step 3: Cross multiply
   9,725.83x = 13,420.96 × 5,475.56
4. Step 4: Simplify right side
   9,725.83x = 73,487,190.94
5. Step 5: Solve for x
   x = 73,487,190.94/9,725.83
6. Step 6: Final answer
   x = 7,555.88