Finding the Fourth Proportional to 5,613.89, 8,414.00 and 3,970.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,613.89 : 8,414.00 = 3,970.91 : x
2. Step 2: Convert to fraction form
   5,613.89/8,414.00 = 3,970.91/x
3. Step 3: Cross multiply
   5,613.89x = 8,414.00 × 3,970.91
4. Step 4: Simplify right side
   5,613.89x = 33,411,174.82
5. Step 5: Solve for x
   x = 33,411,174.82/5,613.89
6. Step 6: Final answer
   x = 5,951.52