Finding the Fourth Proportional to 5,613.98, 7,746.77 and 5,425.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,613.98 : 7,746.77 = 5,425.25 : x
2. Step 2: Convert to fraction form
   5,613.98/7,746.77 = 5,425.25/x
3. Step 3: Cross multiply
   5,613.98x = 7,746.77 × 5,425.25
4. Step 4: Simplify right side
   5,613.98x = 42,028,138.77
5. Step 5: Solve for x
   x = 42,028,138.77/5,613.98
6. Step 6: Final answer
   x = 7,486.34