Finding the Fourth Proportional to 9,421.83, 13,003.72 and 5,445.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,421.83 : 13,003.72 = 5,445.25 : x
2. Step 2: Convert to fraction form
   9,421.83/13,003.72 = 5,445.25/x
3. Step 3: Cross multiply
   9,421.83x = 13,003.72 × 5,445.25
4. Step 4: Simplify right side
   9,421.83x = 70,808,462.82
5. Step 5: Solve for x
   x = 70,808,462.82/9,421.83
6. Step 6: Final answer
   x = 7,515.36