Finding the Fourth Proportional to 5,445.30, 7,613.70 and 5,445.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,445.30 : 7,613.70 = 5,445.30 : x
2. Step 2: Convert to fraction form
   5,445.30/7,613.70 = 5,445.30/x
3. Step 3: Cross multiply
   5,445.30x = 7,613.70 × 5,445.30
4. Step 4: Simplify right side
   5,445.30x = 41,458,880.61
5. Step 5: Solve for x
   x = 41,458,880.61/5,445.30
6. Step 6: Final answer
   x = 7,613.70